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Finding the Fourth Proportional to 65,805.20, 98,772.60 and 32,562.80

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Solution

The fourth proportional to 65,805.20, 98,772.60 and 32,562.80 is: 48,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,805.20 : 98,772.60 = 32,562.80 : x
  2. Step 2: Convert to fraction form
    65,805.20/98,772.60 = 32,562.80/x
  3. Step 3: Cross multiply
    65,805.20x = 98,772.60 × 32,562.80
  4. Step 4: Simplify right side
    65,805.20x = 3,216,312,419.28
  5. Step 5: Solve for x
    x = 3,216,312,419.28/65,805.20
  6. Step 6: Final answer
    x = 48,876.27

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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.