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Finding the Fourth Proportional to 65,373.30, 98,063.03 and 20,425.33

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Solution

The fourth proportional to 65,373.30, 98,063.03 and 20,425.33 is: 30,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373.30 : 98,063.03 = 20,425.33 : x
  2. Step 2: Convert to fraction form
    65,373.30/98,063.03 = 20,425.33/x
  3. Step 3: Cross multiply
    65,373.30x = 98,063.03 × 20,425.33
  4. Step 4: Simplify right side
    65,373.30x = 2,002,969,451.04
  5. Step 5: Solve for x
    x = 2,002,969,451.04/65,373.30
  6. Step 6: Final answer
    x = 30,638.95

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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.