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Finding the Fourth Proportional to 67,908.40, 93,712.14 and 37,691.96

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Solution

The fourth proportional to 67,908.40, 93,712.14 and 37,691.96 is: 52,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,908.40 : 93,712.14 = 37,691.96 : x
  2. Step 2: Convert to fraction form
    67,908.40/93,712.14 = 37,691.96/x
  3. Step 3: Cross multiply
    67,908.40x = 93,712.14 × 37,691.96
  4. Step 4: Simplify right side
    67,908.40x = 3,532,194,232.39
  5. Step 5: Solve for x
    x = 3,532,194,232.39/67,908.40
  6. Step 6: Final answer
    x = 52,014.10

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Why These Related Problems?

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