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Finding the Fourth Proportional to 36,560.99, 54,841.49 and 13,187.42

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Solution

The fourth proportional to 36,560.99, 54,841.49 and 13,187.42 is: 19,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,560.99 : 54,841.49 = 13,187.42 : x
  2. Step 2: Convert to fraction form
    36,560.99/54,841.49 = 13,187.42/x
  3. Step 3: Cross multiply
    36,560.99x = 54,841.49 × 13,187.42
  4. Step 4: Simplify right side
    36,560.99x = 723,218,059.68
  5. Step 5: Solve for x
    x = 723,218,059.68/36,560.99
  6. Step 6: Final answer
    x = 19,781.14

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.