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Finding the Fourth Proportional to 14,765.99, 20,376.77 and 8,051.65

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Solution

The fourth proportional to 14,765.99, 20,376.77 and 8,051.65 is: 11,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.99 : 20,376.77 = 8,051.65 : x
  2. Step 2: Convert to fraction form
    14,765.99/20,376.77 = 8,051.65/x
  3. Step 3: Cross multiply
    14,765.99x = 20,376.77 × 8,051.65
  4. Step 4: Simplify right side
    14,765.99x = 164,066,528.97
  5. Step 5: Solve for x
    x = 164,066,528.97/14,765.99
  6. Step 6: Final answer
    x = 11,111.11

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Half scale
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Double scale
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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.