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Finding the Fourth Proportional to 15,860.72, 23,812.92 and 8,074.96

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Solution

The fourth proportional to 15,860.72, 23,812.92 and 8,074.96 is: 12,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.72 : 23,812.92 = 8,074.96 : x
  2. Step 2: Convert to fraction form
    15,860.72/23,812.92 = 8,074.96/x
  3. Step 3: Cross multiply
    15,860.72x = 23,812.92 × 8,074.96
  4. Step 4: Simplify right side
    15,860.72x = 192,288,376.48
  5. Step 5: Solve for x
    x = 192,288,376.48/15,860.72
  6. Step 6: Final answer
    x = 12,123.56

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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.