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Finding the Fourth Proportional to 25,600.88, 38,394.84 and 8,061.68

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Solution

The fourth proportional to 25,600.88, 38,394.84 and 8,061.68 is: 12,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.88 : 38,394.84 = 8,061.68 : x
  2. Step 2: Convert to fraction form
    25,600.88/38,394.84 = 8,061.68/x
  3. Step 3: Cross multiply
    25,600.88x = 38,394.84 × 8,061.68
  4. Step 4: Simplify right side
    25,600.88x = 309,526,913.73
  5. Step 5: Solve for x
    x = 309,526,913.73/25,600.88
  6. Step 6: Final answer
    x = 12,090.48

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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.