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Finding the Fourth Proportional to 25,775.92, 38,669.34 and 8,247.11

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Solution

The fourth proportional to 25,775.92, 38,669.34 and 8,247.11 is: 12,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.92 : 38,669.34 = 8,247.11 : x
  2. Step 2: Convert to fraction form
    25,775.92/38,669.34 = 8,247.11/x
  3. Step 3: Cross multiply
    25,775.92x = 38,669.34 × 8,247.11
  4. Step 4: Simplify right side
    25,775.92x = 318,910,300.61
  5. Step 5: Solve for x
    x = 318,910,300.61/25,775.92
  6. Step 6: Final answer
    x = 12,372.41

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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.