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Finding the Fourth Proportional to 57,813.68, 86,719.30 and 26,648.94

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Solution

The fourth proportional to 57,813.68, 86,719.30 and 26,648.94 is: 39,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.68 : 86,719.30 = 26,648.94 : x
  2. Step 2: Convert to fraction form
    57,813.68/86,719.30 = 26,648.94/x
  3. Step 3: Cross multiply
    57,813.68x = 86,719.30 × 26,648.94
  4. Step 4: Simplify right side
    57,813.68x = 2,310,977,422.54
  5. Step 5: Solve for x
    x = 2,310,977,422.54/57,813.68
  6. Step 6: Final answer
    x = 39,972.85

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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.