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Finding the Fourth Proportional to 69,961.52, 96,549.50 and 39,751.96

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Solution

The fourth proportional to 69,961.52, 96,549.50 and 39,751.96 is: 54,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,961.52 : 96,549.50 = 39,751.96 : x
  2. Step 2: Convert to fraction form
    69,961.52/96,549.50 = 39,751.96/x
  3. Step 3: Cross multiply
    69,961.52x = 96,549.50 × 39,751.96
  4. Step 4: Simplify right side
    69,961.52x = 3,838,031,862.02
  5. Step 5: Solve for x
    x = 3,838,031,862.02/69,961.52
  6. Step 6: Final answer
    x = 54,859.18

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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.