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Finding the Fourth Proportional to 58,657.92, 80,936.82 and 34,775.88

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Solution

The fourth proportional to 58,657.92, 80,936.82 and 34,775.88 is: 47,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,657.92 : 80,936.82 = 34,775.88 : x
  2. Step 2: Convert to fraction form
    58,657.92/80,936.82 = 34,775.88/x
  3. Step 3: Cross multiply
    58,657.92x = 80,936.82 × 34,775.88
  4. Step 4: Simplify right side
    58,657.92x = 2,814,649,139.90
  5. Step 5: Solve for x
    x = 2,814,649,139.90/58,657.92
  6. Step 6: Final answer
    x = 47,984.13

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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.