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Finding the Fourth Proportional to 22,110.28, 30,512 and 12,552

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Solution

The fourth proportional to 22,110.28, 30,512 and 12,552 is: 17,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.28 : 30,512 = 12,552 : x
  2. Step 2: Convert to fraction form
    22,110.28/30,512 = 12,552/x
  3. Step 3: Cross multiply
    22,110.28x = 30,512 × 12,552
  4. Step 4: Simplify right side
    22,110.28x = 382,986,624
  5. Step 5: Solve for x
    x = 382,986,624/22,110.28
  6. Step 6: Final answer
    x = 17,321.65

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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.