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Finding the Fourth Proportional to 55,304.40, 82,897.72 and 25,687.76

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Solution

The fourth proportional to 55,304.40, 82,897.72 and 25,687.76 is: 38,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,304.40 : 82,897.72 = 25,687.76 : x
  2. Step 2: Convert to fraction form
    55,304.40/82,897.72 = 25,687.76/x
  3. Step 3: Cross multiply
    55,304.40x = 82,897.72 × 25,687.76
  4. Step 4: Simplify right side
    55,304.40x = 2,129,456,735.91
  5. Step 5: Solve for x
    x = 2,129,456,735.91/55,304.40
  6. Step 6: Final answer
    x = 38,504.29

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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.