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Finding the Fourth Proportional to 10,654.11, 15,981.17 and 3,726.99

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Solution

The fourth proportional to 10,654.11, 15,981.17 and 3,726.99 is: 5,590.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.11 : 15,981.17 = 3,726.99 : x
  2. Step 2: Convert to fraction form
    10,654.11/15,981.17 = 3,726.99/x
  3. Step 3: Cross multiply
    10,654.11x = 15,981.17 × 3,726.99
  4. Step 4: Simplify right side
    10,654.11x = 59,561,642.14
  5. Step 5: Solve for x
    x = 59,561,642.14/10,654.11
  6. Step 6: Final answer
    x = 5,590.49

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