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Finding the Fourth Proportional to 55,124.94, 82,691.06 and 21,844.88

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Solution

The fourth proportional to 55,124.94, 82,691.06 and 21,844.88 is: 32,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.94 : 82,691.06 = 21,844.88 : x
  2. Step 2: Convert to fraction form
    55,124.94/82,691.06 = 21,844.88/x
  3. Step 3: Cross multiply
    55,124.94x = 82,691.06 × 21,844.88
  4. Step 4: Simplify right side
    55,124.94x = 1,806,376,282.77
  5. Step 5: Solve for x
    x = 1,806,376,282.77/55,124.94
  6. Step 6: Final answer
    x = 32,768.77

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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.