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Finding the Fourth Proportional to 62,449.78, 86,099.34 and 45,456.79

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Solution

The fourth proportional to 62,449.78, 86,099.34 and 45,456.79 is: 62,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,449.78 : 86,099.34 = 45,456.79 : x
  2. Step 2: Convert to fraction form
    62,449.78/86,099.34 = 45,456.79/x
  3. Step 3: Cross multiply
    62,449.78x = 86,099.34 × 45,456.79
  4. Step 4: Simplify right side
    62,449.78x = 3,913,799,617.52
  5. Step 5: Solve for x
    x = 3,913,799,617.52/62,449.78
  6. Step 6: Final answer
    x = 62,671.15

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1.5x scale

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.