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Finding the Fourth Proportional to 26,911.80, 40,367.70 and 16,414.20

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Solution

The fourth proportional to 26,911.80, 40,367.70 and 16,414.20 is: 24,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.80 : 40,367.70 = 16,414.20 : x
  2. Step 2: Convert to fraction form
    26,911.80/40,367.70 = 16,414.20/x
  3. Step 3: Cross multiply
    26,911.80x = 40,367.70 × 16,414.20
  4. Step 4: Simplify right side
    26,911.80x = 662,603,501.34
  5. Step 5: Solve for x
    x = 662,603,501.34/26,911.80
  6. Step 6: Final answer
    x = 24,621.30

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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.