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Finding the Fourth Proportional to 62,622.39, 86,418.90 and 34,327.47

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Solution

The fourth proportional to 62,622.39, 86,418.90 and 34,327.47 is: 47,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,622.39 : 86,418.90 = 34,327.47 : x
  2. Step 2: Convert to fraction form
    62,622.39/86,418.90 = 34,327.47/x
  3. Step 3: Cross multiply
    62,622.39x = 86,418.90 × 34,327.47
  4. Step 4: Simplify right side
    62,622.39x = 2,966,542,197.18
  5. Step 5: Solve for x
    x = 2,966,542,197.18/62,622.39
  6. Step 6: Final answer
    x = 47,371.91

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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.