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Finding the Fourth Proportional to 39,893.65, 59,793.77 and 25,643.95

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Solution

The fourth proportional to 39,893.65, 59,793.77 and 25,643.95 is: 38,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.65 : 59,793.77 = 25,643.95 : x
  2. Step 2: Convert to fraction form
    39,893.65/59,793.77 = 25,643.95/x
  3. Step 3: Cross multiply
    39,893.65x = 59,793.77 × 25,643.95
  4. Step 4: Simplify right side
    39,893.65x = 1,533,348,319.97
  5. Step 5: Solve for x
    x = 1,533,348,319.97/39,893.65
  6. Step 6: Final answer
    x = 38,435.90

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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.