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Finding the Fourth Proportional to 22,287.92, 33,390.88 and 13,966.39

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Solution

The fourth proportional to 22,287.92, 33,390.88 and 13,966.39 is: 20,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287.92 : 33,390.88 = 13,966.39 : x
  2. Step 2: Convert to fraction form
    22,287.92/33,390.88 = 13,966.39/x
  3. Step 3: Cross multiply
    22,287.92x = 33,390.88 × 13,966.39
  4. Step 4: Simplify right side
    22,287.92x = 466,349,934.13
  5. Step 5: Solve for x
    x = 466,349,934.13/22,287.92
  6. Step 6: Final answer
    x = 20,923.89

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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.