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Finding the Fourth Proportional to 25,873.78, 38,818.23 and 8,343.22

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Solution

The fourth proportional to 25,873.78, 38,818.23 and 8,343.22 is: 12,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,873.78 : 38,818.23 = 8,343.22 : x
  2. Step 2: Convert to fraction form
    25,873.78/38,818.23 = 8,343.22/x
  3. Step 3: Cross multiply
    25,873.78x = 38,818.23 × 8,343.22
  4. Step 4: Simplify right side
    25,873.78x = 323,869,032.90
  5. Step 5: Solve for x
    x = 323,869,032.90/25,873.78
  6. Step 6: Final answer
    x = 12,517.27

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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.