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Finding the Fourth Proportional to 14,493.14, 19,995.84 and 8,118.76

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Solution

The fourth proportional to 14,493.14, 19,995.84 and 8,118.76 is: 11,201.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.14 : 19,995.84 = 8,118.76 : x
  2. Step 2: Convert to fraction form
    14,493.14/19,995.84 = 8,118.76/x
  3. Step 3: Cross multiply
    14,493.14x = 19,995.84 × 8,118.76
  4. Step 4: Simplify right side
    14,493.14x = 162,341,425.96
  5. Step 5: Solve for x
    x = 162,341,425.96/14,493.14
  6. Step 6: Final answer
    x = 11,201.26

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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.