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Finding the Fourth Proportional to 67,405.68, 93,024.18 and 38,734.56

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Solution

The fourth proportional to 67,405.68, 93,024.18 and 38,734.56 is: 53,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,405.68 : 93,024.18 = 38,734.56 : x
  2. Step 2: Convert to fraction form
    67,405.68/93,024.18 = 38,734.56/x
  3. Step 3: Cross multiply
    67,405.68x = 93,024.18 × 38,734.56
  4. Step 4: Simplify right side
    67,405.68x = 3,603,250,681.66
  5. Step 5: Solve for x
    x = 3,603,250,681.66/67,405.68
  6. Step 6: Final answer
    x = 53,456.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.