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Finding the Fourth Proportional to 64,620.85, 96,871.54 and 34,655.92

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Solution

The fourth proportional to 64,620.85, 96,871.54 and 34,655.92 is: 51,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,620.85 : 96,871.54 = 34,655.92 : x
  2. Step 2: Convert to fraction form
    64,620.85/96,871.54 = 34,655.92/x
  3. Step 3: Cross multiply
    64,620.85x = 96,871.54 × 34,655.92
  4. Step 4: Simplify right side
    64,620.85x = 3,357,172,366.30
  5. Step 5: Solve for x
    x = 3,357,172,366.30/64,620.85
  6. Step 6: Final answer
    x = 51,951.84

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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.