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Finding the Fourth Proportional to 40,424.46, 55,787.44 and 22,519.46

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Solution

The fourth proportional to 40,424.46, 55,787.44 and 22,519.46 is: 31,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.46 : 55,787.44 = 22,519.46 : x
  2. Step 2: Convert to fraction form
    40,424.46/55,787.44 = 22,519.46/x
  3. Step 3: Cross multiply
    40,424.46x = 55,787.44 × 22,519.46
  4. Step 4: Simplify right side
    40,424.46x = 1,256,302,910.99
  5. Step 5: Solve for x
    x = 1,256,302,910.99/40,424.46
  6. Step 6: Final answer
    x = 31,077.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.