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Finding the Fourth Proportional to 26,876.60, 40,314.90 and 19,446.20

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Solution

The fourth proportional to 26,876.60, 40,314.90 and 19,446.20 is: 29,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,876.60 : 40,314.90 = 19,446.20 : x
  2. Step 2: Convert to fraction form
    26,876.60/40,314.90 = 19,446.20/x
  3. Step 3: Cross multiply
    26,876.60x = 40,314.90 × 19,446.20
  4. Step 4: Simplify right side
    26,876.60x = 783,971,608.38
  5. Step 5: Solve for x
    x = 783,971,608.38/26,876.60
  6. Step 6: Final answer
    x = 29,169.30

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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.