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Finding the Fourth Proportional to 26,819.20, 40,048.20 and 21,898.44

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Solution

The fourth proportional to 26,819.20, 40,048.20 and 21,898.44 is: 32,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,819.20 : 40,048.20 = 21,898.44 : x
  2. Step 2: Convert to fraction form
    26,819.20/40,048.20 = 21,898.44/x
  3. Step 3: Cross multiply
    26,819.20x = 40,048.20 × 21,898.44
  4. Step 4: Simplify right side
    26,819.20x = 876,993,104.81
  5. Step 5: Solve for x
    x = 876,993,104.81/26,819.20
  6. Step 6: Final answer
    x = 32,700.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.