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Finding the Fourth Proportional to 14,353.98, 19,809.32 and 8,066.76

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Solution

The fourth proportional to 14,353.98, 19,809.32 and 8,066.76 is: 11,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.98 : 19,809.32 = 8,066.76 : x
  2. Step 2: Convert to fraction form
    14,353.98/19,809.32 = 8,066.76/x
  3. Step 3: Cross multiply
    14,353.98x = 19,809.32 × 8,066.76
  4. Step 4: Simplify right side
    14,353.98x = 159,796,989.87
  5. Step 5: Solve for x
    x = 159,796,989.87/14,353.98
  6. Step 6: Final answer
    x = 11,132.59

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Find fourth proportional to 7,176.99, 9,904.66 and 4,033.38
Half scale
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Double scale
Find fourth proportional to 14,354.98, 19,810.70 and 8,067.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.