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Finding the Fourth Proportional to 39,981.02, 59,960.52 and 15,019.11

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Solution

The fourth proportional to 39,981.02, 59,960.52 and 15,019.11 is: 22,524.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.02 : 59,960.52 = 15,019.11 : x
  2. Step 2: Convert to fraction form
    39,981.02/59,960.52 = 15,019.11/x
  3. Step 3: Cross multiply
    39,981.02x = 59,960.52 × 15,019.11
  4. Step 4: Simplify right side
    39,981.02x = 900,553,645.54
  5. Step 5: Solve for x
    x = 900,553,645.54/39,981.02
  6. Step 6: Final answer
    x = 22,524.53

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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.