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Finding the Fourth Proportional to 17,625.90, 26,432.45 and 8,857.90

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Solution

The fourth proportional to 17,625.90, 26,432.45 and 8,857.90 is: 13,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,625.90 : 26,432.45 = 8,857.90 : x
  2. Step 2: Convert to fraction form
    17,625.90/26,432.45 = 8,857.90/x
  3. Step 3: Cross multiply
    17,625.90x = 26,432.45 × 8,857.90
  4. Step 4: Simplify right side
    17,625.90x = 234,135,998.86
  5. Step 5: Solve for x
    x = 234,135,998.86/17,625.90
  6. Step 6: Final answer
    x = 13,283.63

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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.