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Finding the Fourth Proportional to 62,781.04, 86,638.48 and 34,100.97

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Solution

The fourth proportional to 62,781.04, 86,638.48 and 34,100.97 is: 47,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,781.04 : 86,638.48 = 34,100.97 : x
  2. Step 2: Convert to fraction form
    62,781.04/86,638.48 = 34,100.97/x
  3. Step 3: Cross multiply
    62,781.04x = 86,638.48 × 34,100.97
  4. Step 4: Simplify right side
    62,781.04x = 2,954,455,797.18
  5. Step 5: Solve for x
    x = 2,954,455,797.18/62,781.04
  6. Step 6: Final answer
    x = 47,059.68

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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.