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Finding the Fourth Proportional to 33,981.04, 50,978.65 and 17,123.52

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Solution

The fourth proportional to 33,981.04, 50,978.65 and 17,123.52 is: 25,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,981.04 : 50,978.65 = 17,123.52 : x
  2. Step 2: Convert to fraction form
    33,981.04/50,978.65 = 17,123.52/x
  3. Step 3: Cross multiply
    33,981.04x = 50,978.65 × 17,123.52
  4. Step 4: Simplify right side
    33,981.04x = 872,933,932.85
  5. Step 5: Solve for x
    x = 872,933,932.85/33,981.04
  6. Step 6: Final answer
    x = 25,688.85

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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.