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Finding the Fourth Proportional to 27,157.30, 40,713.96 and 10,508.80

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Solution

The fourth proportional to 27,157.30, 40,713.96 and 10,508.80 is: 15,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.30 : 40,713.96 = 10,508.80 : x
  2. Step 2: Convert to fraction form
    27,157.30/40,713.96 = 10,508.80/x
  3. Step 3: Cross multiply
    27,157.30x = 40,713.96 × 10,508.80
  4. Step 4: Simplify right side
    27,157.30x = 427,854,862.85
  5. Step 5: Solve for x
    x = 427,854,862.85/27,157.30
  6. Step 6: Final answer
    x = 15,754.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.