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Finding the Fourth Proportional to 60,363.72, 90,555.30 and 18,801

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Solution

The fourth proportional to 60,363.72, 90,555.30 and 18,801 is: 28,204.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,363.72 : 90,555.30 = 18,801 : x
  2. Step 2: Convert to fraction form
    60,363.72/90,555.30 = 18,801/x
  3. Step 3: Cross multiply
    60,363.72x = 90,555.30 × 18,801
  4. Step 4: Simplify right side
    60,363.72x = 1,702,530,195.30
  5. Step 5: Solve for x
    x = 1,702,530,195.30/60,363.72
  6. Step 6: Final answer
    x = 28,204.53

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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.