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Finding the Fourth Proportional to 25,992.92, 38,985.31 and 8,462.63

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Solution

The fourth proportional to 25,992.92, 38,985.31 and 8,462.63 is: 12,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,992.92 : 38,985.31 = 8,462.63 : x
  2. Step 2: Convert to fraction form
    25,992.92/38,985.31 = 8,462.63/x
  3. Step 3: Cross multiply
    25,992.92x = 38,985.31 × 8,462.63
  4. Step 4: Simplify right side
    25,992.92x = 329,918,253.97
  5. Step 5: Solve for x
    x = 329,918,253.97/25,992.92
  6. Step 6: Final answer
    x = 12,692.62

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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.