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Finding the Fourth Proportional to 63,999.96, 95,861.28 and 46,431

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Solution

The fourth proportional to 63,999.96, 95,861.28 and 46,431 is: 69,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,999.96 : 95,861.28 = 46,431 : x
  2. Step 2: Convert to fraction form
    63,999.96/95,861.28 = 46,431/x
  3. Step 3: Cross multiply
    63,999.96x = 95,861.28 × 46,431
  4. Step 4: Simplify right side
    63,999.96x = 4,450,935,091.68
  5. Step 5: Solve for x
    x = 4,450,935,091.68/63,999.96
  6. Step 6: Final answer
    x = 69,545.90

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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.