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Finding the Fourth Proportional to 63,305.28, 87,363.36 and 36,456.48

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Solution

The fourth proportional to 63,305.28, 87,363.36 and 36,456.48 is: 50,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,305.28 : 87,363.36 = 36,456.48 : x
  2. Step 2: Convert to fraction form
    63,305.28/87,363.36 = 36,456.48/x
  3. Step 3: Cross multiply
    63,305.28x = 87,363.36 × 36,456.48
  4. Step 4: Simplify right side
    63,305.28x = 3,184,960,586.57
  5. Step 5: Solve for x
    x = 3,184,960,586.57/63,305.28
  6. Step 6: Final answer
    x = 50,311.14

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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.