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Finding the Fourth Proportional to 65,720.90, 98,621.85 and 26,273.90

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Solution

The fourth proportional to 65,720.90, 98,621.85 and 26,273.90 is: 39,427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720.90 : 98,621.85 = 26,273.90 : x
  2. Step 2: Convert to fraction form
    65,720.90/98,621.85 = 26,273.90/x
  3. Step 3: Cross multiply
    65,720.90x = 98,621.85 × 26,273.90
  4. Step 4: Simplify right side
    65,720.90x = 2,591,180,624.72
  5. Step 5: Solve for x
    x = 2,591,180,624.72/65,720.90
  6. Step 6: Final answer
    x = 39,427.04

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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.