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Finding the Fourth Proportional to 57,872.66, 86,817.30 and 17,894.76

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Solution

The fourth proportional to 57,872.66, 86,817.30 and 17,894.76 is: 26,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.66 : 86,817.30 = 17,894.76 : x
  2. Step 2: Convert to fraction form
    57,872.66/86,817.30 = 17,894.76/x
  3. Step 3: Cross multiply
    57,872.66x = 86,817.30 × 17,894.76
  4. Step 4: Simplify right side
    57,872.66x = 1,553,574,354.68
  5. Step 5: Solve for x
    x = 1,553,574,354.68/57,872.66
  6. Step 6: Final answer
    x = 26,844.71

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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.