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Finding the Fourth Proportional to 57,493.35, 86,253.03 and 17,515.95

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Solution

The fourth proportional to 57,493.35, 86,253.03 and 17,515.95 is: 26,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,493.35 : 86,253.03 = 17,515.95 : x
  2. Step 2: Convert to fraction form
    57,493.35/86,253.03 = 17,515.95/x
  3. Step 3: Cross multiply
    57,493.35x = 86,253.03 × 17,515.95
  4. Step 4: Simplify right side
    57,493.35x = 1,510,803,760.83
  5. Step 5: Solve for x
    x = 1,510,803,760.83/57,493.35
  6. Step 6: Final answer
    x = 26,277.89

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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.