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Finding the Fourth Proportional to 71,432.52, 98,576.94 and 39,601.80

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Solution

The fourth proportional to 71,432.52, 98,576.94 and 39,601.80 is: 54,650.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,432.52 : 98,576.94 = 39,601.80 : x
  2. Step 2: Convert to fraction form
    71,432.52/98,576.94 = 39,601.80/x
  3. Step 3: Cross multiply
    71,432.52x = 98,576.94 × 39,601.80
  4. Step 4: Simplify right side
    71,432.52x = 3,903,824,262.49
  5. Step 5: Solve for x
    x = 3,903,824,262.49/71,432.52
  6. Step 6: Final answer
    x = 54,650.52

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1.5x scale

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.