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Finding the Fourth Proportional to 63,689.80, 95,534.70 and 34,165.30

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Solution

The fourth proportional to 63,689.80, 95,534.70 and 34,165.30 is: 51,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,689.80 : 95,534.70 = 34,165.30 : x
  2. Step 2: Convert to fraction form
    63,689.80/95,534.70 = 34,165.30/x
  3. Step 3: Cross multiply
    63,689.80x = 95,534.70 × 34,165.30
  4. Step 4: Simplify right side
    63,689.80x = 3,263,971,685.91
  5. Step 5: Solve for x
    x = 3,263,971,685.91/63,689.80
  6. Step 6: Final answer
    x = 51,247.95

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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.