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Finding the Fourth Proportional to 40,392.53, 55,741.64 and 22,489.10

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Solution

The fourth proportional to 40,392.53, 55,741.64 and 22,489.10 is: 31,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392.53 : 55,741.64 = 22,489.10 : x
  2. Step 2: Convert to fraction form
    40,392.53/55,741.64 = 22,489.10/x
  3. Step 3: Cross multiply
    40,392.53x = 55,741.64 × 22,489.10
  4. Step 4: Simplify right side
    40,392.53x = 1,253,578,924.97
  5. Step 5: Solve for x
    x = 1,253,578,924.97/40,392.53
  6. Step 6: Final answer
    x = 31,034.92

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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.