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Finding the Fourth Proportional to 62,865.90, 86,754.96 and 34,571.58

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Solution

The fourth proportional to 62,865.90, 86,754.96 and 34,571.58 is: 47,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,865.90 : 86,754.96 = 34,571.58 : x
  2. Step 2: Convert to fraction form
    62,865.90/86,754.96 = 34,571.58/x
  3. Step 3: Cross multiply
    62,865.90x = 86,754.96 × 34,571.58
  4. Step 4: Simplify right side
    62,865.90x = 2,999,256,040.04
  5. Step 5: Solve for x
    x = 2,999,256,040.04/62,865.90
  6. Step 6: Final answer
    x = 47,708.79

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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.