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Finding the Fourth Proportional to 63,658.68, 87,850.36 and 34,978.75

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Solution

The fourth proportional to 63,658.68, 87,850.36 and 34,978.75 is: 48,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,658.68 : 87,850.36 = 34,978.75 : x
  2. Step 2: Convert to fraction form
    63,658.68/87,850.36 = 34,978.75/x
  3. Step 3: Cross multiply
    63,658.68x = 87,850.36 × 34,978.75
  4. Step 4: Simplify right side
    63,658.68x = 3,072,895,603.95
  5. Step 5: Solve for x
    x = 3,072,895,603.95/63,658.68
  6. Step 6: Final answer
    x = 48,271.43

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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.