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Finding the Fourth Proportional to 39,373.80, 59,062.30 and 13,081

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Solution

The fourth proportional to 39,373.80, 59,062.30 and 13,081 is: 19,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,373.80 : 59,062.30 = 13,081 : x
  2. Step 2: Convert to fraction form
    39,373.80/59,062.30 = 13,081/x
  3. Step 3: Cross multiply
    39,373.80x = 59,062.30 × 13,081
  4. Step 4: Simplify right side
    39,373.80x = 772,593,946.30
  5. Step 5: Solve for x
    x = 772,593,946.30/39,373.80
  6. Step 6: Final answer
    x = 19,622.03

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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.