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Finding the Fourth Proportional to 64,562.81, 96,663.78 and 34,874.28

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Solution

The fourth proportional to 64,562.81, 96,663.78 and 34,874.28 is: 52,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,562.81 : 96,663.78 = 34,874.28 : x
  2. Step 2: Convert to fraction form
    64,562.81/96,663.78 = 34,874.28/x
  3. Step 3: Cross multiply
    64,562.81x = 96,663.78 × 34,874.28
  4. Step 4: Simplify right side
    64,562.81x = 3,371,079,729.58
  5. Step 5: Solve for x
    x = 3,371,079,729.58/64,562.81
  6. Step 6: Final answer
    x = 52,213.96

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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.