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Finding the Fourth Proportional to 18,294.97, 25,248.23 and 11,220.43

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Solution

The fourth proportional to 18,294.97, 25,248.23 and 11,220.43 is: 15,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.97 : 25,248.23 = 11,220.43 : x
  2. Step 2: Convert to fraction form
    18,294.97/25,248.23 = 11,220.43/x
  3. Step 3: Cross multiply
    18,294.97x = 25,248.23 × 11,220.43
  4. Step 4: Simplify right side
    18,294.97x = 283,295,941.24
  5. Step 5: Solve for x
    x = 283,295,941.24/18,294.97
  6. Step 6: Final answer
    x = 15,484.91

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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.