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Finding the Fourth Proportional to 64,013.76, 88,237.92 and 45,120.96

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Solution

The fourth proportional to 64,013.76, 88,237.92 and 45,120.96 is: 62,195.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.76 : 88,237.92 = 45,120.96 : x
  2. Step 2: Convert to fraction form
    64,013.76/88,237.92 = 45,120.96/x
  3. Step 3: Cross multiply
    64,013.76x = 88,237.92 × 45,120.96
  4. Step 4: Simplify right side
    64,013.76x = 3,981,379,658.80
  5. Step 5: Solve for x
    x = 3,981,379,658.80/64,013.76
  6. Step 6: Final answer
    x = 62,195.69

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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.