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Finding the Fourth Proportional to 57,912.60, 86,868.90 and 22,847.70

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Solution

The fourth proportional to 57,912.60, 86,868.90 and 22,847.70 is: 34,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,912.60 : 86,868.90 = 22,847.70 : x
  2. Step 2: Convert to fraction form
    57,912.60/86,868.90 = 22,847.70/x
  3. Step 3: Cross multiply
    57,912.60x = 86,868.90 × 22,847.70
  4. Step 4: Simplify right side
    57,912.60x = 1,984,754,566.53
  5. Step 5: Solve for x
    x = 1,984,754,566.53/57,912.60
  6. Step 6: Final answer
    x = 34,271.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.