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Finding the Fourth Proportional to 45,838.70, 68,748.45 and 22,481.90

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Solution

The fourth proportional to 45,838.70, 68,748.45 and 22,481.90 is: 33,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,838.70 : 68,748.45 = 22,481.90 : x
  2. Step 2: Convert to fraction form
    45,838.70/68,748.45 = 22,481.90/x
  3. Step 3: Cross multiply
    45,838.70x = 68,748.45 × 22,481.90
  4. Step 4: Simplify right side
    45,838.70x = 1,545,595,778.06
  5. Step 5: Solve for x
    x = 1,545,595,778.06/45,838.70
  6. Step 6: Final answer
    x = 33,718.14

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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.