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Finding the Fourth Proportional to 44,642.80, 66,972.30 and 22,400.20

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Solution

The fourth proportional to 44,642.80, 66,972.30 and 22,400.20 is: 33,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,642.80 : 66,972.30 = 22,400.20 : x
  2. Step 2: Convert to fraction form
    44,642.80/66,972.30 = 22,400.20/x
  3. Step 3: Cross multiply
    44,642.80x = 66,972.30 × 22,400.20
  4. Step 4: Simplify right side
    44,642.80x = 1,500,192,914.46
  5. Step 5: Solve for x
    x = 1,500,192,914.46/44,642.80
  6. Step 6: Final answer
    x = 33,604.36

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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.