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Finding the Fourth Proportional to 43,862.40, 65,793.60 and 38,937.60

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Solution

The fourth proportional to 43,862.40, 65,793.60 and 38,937.60 is: 58,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,862.40 : 65,793.60 = 38,937.60 : x
  2. Step 2: Convert to fraction form
    43,862.40/65,793.60 = 38,937.60/x
  3. Step 3: Cross multiply
    43,862.40x = 65,793.60 × 38,937.60
  4. Step 4: Simplify right side
    43,862.40x = 2,561,844,879.36
  5. Step 5: Solve for x
    x = 2,561,844,879.36/43,862.40
  6. Step 6: Final answer
    x = 58,406.40

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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.