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Finding the Fourth Proportional to 39,952.80, 59,960.18 and 15,015.54

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Solution

The fourth proportional to 39,952.80, 59,960.18 and 15,015.54 is: 22,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,952.80 : 59,960.18 = 15,015.54 : x
  2. Step 2: Convert to fraction form
    39,952.80/59,960.18 = 15,015.54/x
  3. Step 3: Cross multiply
    39,952.80x = 59,960.18 × 15,015.54
  4. Step 4: Simplify right side
    39,952.80x = 900,334,481.20
  5. Step 5: Solve for x
    x = 900,334,481.20/39,952.80
  6. Step 6: Final answer
    x = 22,534.95

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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.