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Finding the Fourth Proportional to 40,217.40, 60,383.70 and 22,721.40

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Solution

The fourth proportional to 40,217.40, 60,383.70 and 22,721.40 is: 34,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,217.40 : 60,383.70 = 22,721.40 : x
  2. Step 2: Convert to fraction form
    40,217.40/60,383.70 = 22,721.40/x
  3. Step 3: Cross multiply
    40,217.40x = 60,383.70 × 22,721.40
  4. Step 4: Simplify right side
    40,217.40x = 1,372,002,201.18
  5. Step 5: Solve for x
    x = 1,372,002,201.18/40,217.40
  6. Step 6: Final answer
    x = 34,114.64

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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.