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Finding the Fourth Proportional to 39,563.97, 59,346.06 and 9,981.80

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Solution

The fourth proportional to 39,563.97, 59,346.06 and 9,981.80 is: 14,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,563.97 : 59,346.06 = 9,981.80 : x
  2. Step 2: Convert to fraction form
    39,563.97/59,346.06 = 9,981.80/x
  3. Step 3: Cross multiply
    39,563.97x = 59,346.06 × 9,981.80
  4. Step 4: Simplify right side
    39,563.97x = 592,380,720.60
  5. Step 5: Solve for x
    x = 592,380,720.60/39,563.97
  6. Step 6: Final answer
    x = 14,972.73

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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.