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Finding the Fourth Proportional to 44,489.70, 66,734.55 and 20,797.20

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Solution

The fourth proportional to 44,489.70, 66,734.55 and 20,797.20 is: 31,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,489.70 : 66,734.55 = 20,797.20 : x
  2. Step 2: Convert to fraction form
    44,489.70/66,734.55 = 20,797.20/x
  3. Step 3: Cross multiply
    44,489.70x = 66,734.55 × 20,797.20
  4. Step 4: Simplify right side
    44,489.70x = 1,387,891,783.26
  5. Step 5: Solve for x
    x = 1,387,891,783.26/44,489.70
  6. Step 6: Final answer
    x = 31,195.80

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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.