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Finding the Fourth Proportional to 59,900.80, 82,672.52 and 39,542.80

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Solution

The fourth proportional to 59,900.80, 82,672.52 and 39,542.80 is: 54,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,900.80 : 82,672.52 = 39,542.80 : x
  2. Step 2: Convert to fraction form
    59,900.80/82,672.52 = 39,542.80/x
  3. Step 3: Cross multiply
    59,900.80x = 82,672.52 × 39,542.80
  4. Step 4: Simplify right side
    59,900.80x = 3,269,102,923.86
  5. Step 5: Solve for x
    x = 3,269,102,923.86/59,900.80
  6. Step 6: Final answer
    x = 54,575.28

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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.