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Finding the Fourth Proportional to 26,993.30, 40,477.80 and 10,347.80

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Solution

The fourth proportional to 26,993.30, 40,477.80 and 10,347.80 is: 15,517.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,993.30 : 40,477.80 = 10,347.80 : x
  2. Step 2: Convert to fraction form
    26,993.30/40,477.80 = 10,347.80/x
  3. Step 3: Cross multiply
    26,993.30x = 40,477.80 × 10,347.80
  4. Step 4: Simplify right side
    26,993.30x = 418,856,178.84
  5. Step 5: Solve for x
    x = 418,856,178.84/26,993.30
  6. Step 6: Final answer
    x = 15,517.04

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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.