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Finding the Fourth Proportional to 40,519.88, 55,912.42 and 22,615.88

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Solution

The fourth proportional to 40,519.88, 55,912.42 and 22,615.88 is: 31,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,519.88 : 55,912.42 = 22,615.88 : x
  2. Step 2: Convert to fraction form
    40,519.88/55,912.42 = 22,615.88/x
  3. Step 3: Cross multiply
    40,519.88x = 55,912.42 × 22,615.88
  4. Step 4: Simplify right side
    40,519.88x = 1,264,508,581.23
  5. Step 5: Solve for x
    x = 1,264,508,581.23/40,519.88
  6. Step 6: Final answer
    x = 31,207.12

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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.