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Finding the Fourth Proportional to 42,600.60, 63,973.80 and 41,288.40

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Solution

The fourth proportional to 42,600.60, 63,973.80 and 41,288.40 is: 62,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,600.60 : 63,973.80 = 41,288.40 : x
  2. Step 2: Convert to fraction form
    42,600.60/63,973.80 = 41,288.40/x
  3. Step 3: Cross multiply
    42,600.60x = 63,973.80 × 41,288.40
  4. Step 4: Simplify right side
    42,600.60x = 2,641,375,843.92
  5. Step 5: Solve for x
    x = 2,641,375,843.92/42,600.60
  6. Step 6: Final answer
    x = 62,003.25

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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.