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Finding the Fourth Proportional to 22,167.80, 33,209.04 and 13,851.08

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Solution

The fourth proportional to 22,167.80, 33,209.04 and 13,851.08 is: 20,749.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,167.80 : 33,209.04 = 13,851.08 : x
  2. Step 2: Convert to fraction form
    22,167.80/33,209.04 = 13,851.08/x
  3. Step 3: Cross multiply
    22,167.80x = 33,209.04 × 13,851.08
  4. Step 4: Simplify right side
    22,167.80x = 459,981,069.76
  5. Step 5: Solve for x
    x = 459,981,069.76/22,167.80
  6. Step 6: Final answer
    x = 20,749.96

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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.