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Finding the Fourth Proportional to 18,058.20, 24,920.22 and 10,100.49

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Solution

The fourth proportional to 18,058.20, 24,920.22 and 10,100.49 is: 13,938.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.20 : 24,920.22 = 10,100.49 : x
  2. Step 2: Convert to fraction form
    18,058.20/24,920.22 = 10,100.49/x
  3. Step 3: Cross multiply
    18,058.20x = 24,920.22 × 10,100.49
  4. Step 4: Simplify right side
    18,058.20x = 251,706,432.91
  5. Step 5: Solve for x
    x = 251,706,432.91/18,058.20
  6. Step 6: Final answer
    x = 13,938.62

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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.