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Finding the Fourth Proportional to 26,950.78, 40,425.30 and 7,228.30

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Solution

The fourth proportional to 26,950.78, 40,425.30 and 7,228.30 is: 10,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,950.78 : 40,425.30 = 7,228.30 : x
  2. Step 2: Convert to fraction form
    26,950.78/40,425.30 = 7,228.30/x
  3. Step 3: Cross multiply
    26,950.78x = 40,425.30 × 7,228.30
  4. Step 4: Simplify right side
    26,950.78x = 292,206,195.99
  5. Step 5: Solve for x
    x = 292,206,195.99/26,950.78
  6. Step 6: Final answer
    x = 10,842.22

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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.