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Finding the Fourth Proportional to 14,542.76, 20,066.99 and 8,253.92

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Solution

The fourth proportional to 14,542.76, 20,066.99 and 8,253.92 is: 11,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.76 : 20,066.99 = 8,253.92 : x
  2. Step 2: Convert to fraction form
    14,542.76/20,066.99 = 8,253.92/x
  3. Step 3: Cross multiply
    14,542.76x = 20,066.99 × 8,253.92
  4. Step 4: Simplify right side
    14,542.76x = 165,631,330.10
  5. Step 5: Solve for x
    x = 165,631,330.10/14,542.76
  6. Step 6: Final answer
    x = 11,389.26

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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.