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Finding the Fourth Proportional to 26,411, 39,589.20 and 8,874.92

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Solution

The fourth proportional to 26,411, 39,589.20 and 8,874.92 is: 13,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,411 : 39,589.20 = 8,874.92 : x
  2. Step 2: Convert to fraction form
    26,411/39,589.20 = 8,874.92/x
  3. Step 3: Cross multiply
    26,411x = 39,589.20 × 8,874.92
  4. Step 4: Simplify right side
    26,411x = 351,350,982.86
  5. Step 5: Solve for x
    x = 351,350,982.86/26,411
  6. Step 6: Final answer
    x = 13,303.21

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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.