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Finding the Fourth Proportional to 63,703.67, 87,921.65 and 36,861.89

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Solution

The fourth proportional to 63,703.67, 87,921.65 and 36,861.89 is: 50,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,703.67 : 87,921.65 = 36,861.89 : x
  2. Step 2: Convert to fraction form
    63,703.67/87,921.65 = 36,861.89/x
  3. Step 3: Cross multiply
    63,703.67x = 87,921.65 × 36,861.89
  4. Step 4: Simplify right side
    63,703.67x = 3,240,957,843.46
  5. Step 5: Solve for x
    x = 3,240,957,843.46/63,703.67
  6. Step 6: Final answer
    x = 50,875.53

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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.