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Finding the Fourth Proportional to 63,678.92, 87,872.69 and 34,997.96

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Solution

The fourth proportional to 63,678.92, 87,872.69 and 34,997.96 is: 48,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.92 : 87,872.69 = 34,997.96 : x
  2. Step 2: Convert to fraction form
    63,678.92/87,872.69 = 34,997.96/x
  3. Step 3: Cross multiply
    63,678.92x = 87,872.69 × 34,997.96
  4. Step 4: Simplify right side
    63,678.92x = 3,075,364,275.36
  5. Step 5: Solve for x
    x = 3,075,364,275.36/63,678.92
  6. Step 6: Final answer
    x = 48,294.86

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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.