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Finding the Fourth Proportional to 65,694.20, 98,565.60 and 26,279.60

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Solution

The fourth proportional to 65,694.20, 98,565.60 and 26,279.60 is: 39,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,694.20 : 98,565.60 = 26,279.60 : x
  2. Step 2: Convert to fraction form
    65,694.20/98,565.60 = 26,279.60/x
  3. Step 3: Cross multiply
    65,694.20x = 98,565.60 × 26,279.60
  4. Step 4: Simplify right side
    65,694.20x = 2,590,264,541.76
  5. Step 5: Solve for x
    x = 2,590,264,541.76/65,694.20
  6. Step 6: Final answer
    x = 39,429.12

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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.