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Finding the Fourth Proportional to 52,576.78, 72,555 and 29,915.28

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Solution

The fourth proportional to 52,576.78, 72,555 and 29,915.28 is: 41,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,576.78 : 72,555 = 29,915.28 : x
  2. Step 2: Convert to fraction form
    52,576.78/72,555 = 29,915.28/x
  3. Step 3: Cross multiply
    52,576.78x = 72,555 × 29,915.28
  4. Step 4: Simplify right side
    52,576.78x = 2,170,503,140.40
  5. Step 5: Solve for x
    x = 2,170,503,140.40/52,576.78
  6. Step 6: Final answer
    x = 41,282.54

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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.