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Finding the Fourth Proportional to 57,722.70, 86,596.20 and 18,283.80

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Solution

The fourth proportional to 57,722.70, 86,596.20 and 18,283.80 is: 27,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.70 : 86,596.20 = 18,283.80 : x
  2. Step 2: Convert to fraction form
    57,722.70/86,596.20 = 18,283.80/x
  3. Step 3: Cross multiply
    57,722.70x = 86,596.20 × 18,283.80
  4. Step 4: Simplify right side
    57,722.70x = 1,583,307,601.56
  5. Step 5: Solve for x
    x = 1,583,307,601.56/57,722.70
  6. Step 6: Final answer
    x = 27,429.55

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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.