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Finding the Fourth Proportional to 45,663.75, 68,495.76 and 17,961.75

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Solution

The fourth proportional to 45,663.75, 68,495.76 and 17,961.75 is: 26,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,663.75 : 68,495.76 = 17,961.75 : x
  2. Step 2: Convert to fraction form
    45,663.75/68,495.76 = 17,961.75/x
  3. Step 3: Cross multiply
    45,663.75x = 68,495.76 × 17,961.75
  4. Step 4: Simplify right side
    45,663.75x = 1,230,303,717.18
  5. Step 5: Solve for x
    x = 1,230,303,717.18/45,663.75
  6. Step 6: Final answer
    x = 26,942.68

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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.