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Finding the Fourth Proportional to 22,332.72, 33,480.21 and 18,384.21

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Solution

The fourth proportional to 22,332.72, 33,480.21 and 18,384.21 is: 27,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,332.72 : 33,480.21 = 18,384.21 : x
  2. Step 2: Convert to fraction form
    22,332.72/33,480.21 = 18,384.21/x
  3. Step 3: Cross multiply
    22,332.72x = 33,480.21 × 18,384.21
  4. Step 4: Simplify right side
    22,332.72x = 615,507,211.48
  5. Step 5: Solve for x
    x = 615,507,211.48/22,332.72
  6. Step 6: Final answer
    x = 27,560.78

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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.