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Finding the Fourth Proportional to 65,876.49, 98,819.60 and 23,781.60

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Solution

The fourth proportional to 65,876.49, 98,819.60 and 23,781.60 is: 35,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.49 : 98,819.60 = 23,781.60 : x
  2. Step 2: Convert to fraction form
    65,876.49/98,819.60 = 23,781.60/x
  3. Step 3: Cross multiply
    65,876.49x = 98,819.60 × 23,781.60
  4. Step 4: Simplify right side
    65,876.49x = 2,350,088,080.45
  5. Step 5: Solve for x
    x = 2,350,088,080.45/65,876.49
  6. Step 6: Final answer
    x = 35,674.15

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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.