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Finding the Fourth Proportional to 65,697.20, 98,545.80 and 28,833.20

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Solution

The fourth proportional to 65,697.20, 98,545.80 and 28,833.20 is: 43,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697.20 : 98,545.80 = 28,833.20 : x
  2. Step 2: Convert to fraction form
    65,697.20/98,545.80 = 28,833.20/x
  3. Step 3: Cross multiply
    65,697.20x = 98,545.80 × 28,833.20
  4. Step 4: Simplify right side
    65,697.20x = 2,841,390,760.56
  5. Step 5: Solve for x
    x = 2,841,390,760.56/65,697.20
  6. Step 6: Final answer
    x = 43,249.80

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1.5x scale

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.