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Finding the Fourth Proportional to 22,126.20, 30,520.20 and 13,167.01

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Solution

The fourth proportional to 22,126.20, 30,520.20 and 13,167.01 is: 18,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.20 : 30,520.20 = 13,167.01 : x
  2. Step 2: Convert to fraction form
    22,126.20/30,520.20 = 13,167.01/x
  3. Step 3: Cross multiply
    22,126.20x = 30,520.20 × 13,167.01
  4. Step 4: Simplify right side
    22,126.20x = 401,859,778.60
  5. Step 5: Solve for x
    x = 401,859,778.60/22,126.20
  6. Step 6: Final answer
    x = 18,162.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.