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Finding the Fourth Proportional to 40,695.30, 61,037.10 and 15,747.12

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Solution

The fourth proportional to 40,695.30, 61,037.10 and 15,747.12 is: 23,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,695.30 : 61,037.10 = 15,747.12 : x
  2. Step 2: Convert to fraction form
    40,695.30/61,037.10 = 15,747.12/x
  3. Step 3: Cross multiply
    40,695.30x = 61,037.10 × 15,747.12
  4. Step 4: Simplify right side
    40,695.30x = 961,158,538.15
  5. Step 5: Solve for x
    x = 961,158,538.15/40,695.30
  6. Step 6: Final answer
    x = 23,618.42

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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.