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Finding the Fourth Proportional to 62,673.75, 86,489.78 and 34,380.05

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Solution

The fourth proportional to 62,673.75, 86,489.78 and 34,380.05 is: 47,444.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,673.75 : 86,489.78 = 34,380.05 : x
  2. Step 2: Convert to fraction form
    62,673.75/86,489.78 = 34,380.05/x
  3. Step 3: Cross multiply
    62,673.75x = 86,489.78 × 34,380.05
  4. Step 4: Simplify right side
    62,673.75x = 2,973,522,356.54
  5. Step 5: Solve for x
    x = 2,973,522,356.54/62,673.75
  6. Step 6: Final answer
    x = 47,444.46

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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.