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Finding the Fourth Proportional to 39,862.60, 59,621.10 and 33,641.80

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Solution

The fourth proportional to 39,862.60, 59,621.10 and 33,641.80 is: 50,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.60 : 59,621.10 = 33,641.80 : x
  2. Step 2: Convert to fraction form
    39,862.60/59,621.10 = 33,641.80/x
  3. Step 3: Cross multiply
    39,862.60x = 59,621.10 × 33,641.80
  4. Step 4: Simplify right side
    39,862.60x = 2,005,761,121.98
  5. Step 5: Solve for x
    x = 2,005,761,121.98/39,862.60
  6. Step 6: Final answer
    x = 50,316.87

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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.