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Finding the Fourth Proportional to 65,520.97, 98,281.45 and 26,078.42

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Solution

The fourth proportional to 65,520.97, 98,281.45 and 26,078.42 is: 39,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,520.97 : 98,281.45 = 26,078.42 : x
  2. Step 2: Convert to fraction form
    65,520.97/98,281.45 = 26,078.42/x
  3. Step 3: Cross multiply
    65,520.97x = 98,281.45 × 26,078.42
  4. Step 4: Simplify right side
    65,520.97x = 2,563,025,209.61
  5. Step 5: Solve for x
    x = 2,563,025,209.61/65,520.97
  6. Step 6: Final answer
    x = 39,117.63

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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.