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Finding the Fourth Proportional to 70,393.82, 97,145.89 and 38,562.71

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Solution

The fourth proportional to 70,393.82, 97,145.89 and 38,562.71 is: 53,217.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,393.82 : 97,145.89 = 38,562.71 : x
  2. Step 2: Convert to fraction form
    70,393.82/97,145.89 = 38,562.71/x
  3. Step 3: Cross multiply
    70,393.82x = 97,145.89 × 38,562.71
  4. Step 4: Simplify right side
    70,393.82x = 3,746,208,565.92
  5. Step 5: Solve for x
    x = 3,746,208,565.92/70,393.82
  6. Step 6: Final answer
    x = 53,217.86

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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.