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Finding the Fourth Proportional to 64,636.80, 96,915.48 and 25,147.92

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Solution

The fourth proportional to 64,636.80, 96,915.48 and 25,147.92 is: 37,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,636.80 : 96,915.48 = 25,147.92 : x
  2. Step 2: Convert to fraction form
    64,636.80/96,915.48 = 25,147.92/x
  3. Step 3: Cross multiply
    64,636.80x = 96,915.48 × 25,147.92
  4. Step 4: Simplify right side
    64,636.80x = 2,437,222,737.80
  5. Step 5: Solve for x
    x = 2,437,222,737.80/64,636.80
  6. Step 6: Final answer
    x = 37,706.43

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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.