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Finding the Fourth Proportional to 57,369.61, 85,929.80 and 27,725.28

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Solution

The fourth proportional to 57,369.61, 85,929.80 and 27,725.28 is: 41,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,369.61 : 85,929.80 = 27,725.28 : x
  2. Step 2: Convert to fraction form
    57,369.61/85,929.80 = 27,725.28/x
  3. Step 3: Cross multiply
    57,369.61x = 85,929.80 × 27,725.28
  4. Step 4: Simplify right side
    57,369.61x = 2,382,427,765.34
  5. Step 5: Solve for x
    x = 2,382,427,765.34/57,369.61
  6. Step 6: Final answer
    x = 41,527.70

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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.