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Finding the Fourth Proportional to 62,698.80, 86,523.20 and 35,474.60

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Solution

The fourth proportional to 62,698.80, 86,523.20 and 35,474.60 is: 48,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,698.80 : 86,523.20 = 35,474.60 : x
  2. Step 2: Convert to fraction form
    62,698.80/86,523.20 = 35,474.60/x
  3. Step 3: Cross multiply
    62,698.80x = 86,523.20 × 35,474.60
  4. Step 4: Simplify right side
    62,698.80x = 3,069,375,910.72
  5. Step 5: Solve for x
    x = 3,069,375,910.72/62,698.80
  6. Step 6: Final answer
    x = 48,954.30

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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.