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Finding the Fourth Proportional to 44,648.80, 66,892.20 and 21,223.60

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Solution

The fourth proportional to 44,648.80, 66,892.20 and 21,223.60 is: 31,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,648.80 : 66,892.20 = 21,223.60 : x
  2. Step 2: Convert to fraction form
    44,648.80/66,892.20 = 21,223.60/x
  3. Step 3: Cross multiply
    44,648.80x = 66,892.20 × 21,223.60
  4. Step 4: Simplify right side
    44,648.80x = 1,419,693,295.92
  5. Step 5: Solve for x
    x = 1,419,693,295.92/44,648.80
  6. Step 6: Final answer
    x = 31,796.90

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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.