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Finding the Fourth Proportional to 33,110.15, 49,665.24 and 8,486.15

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Solution

The fourth proportional to 33,110.15, 49,665.24 and 8,486.15 is: 12,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,110.15 : 49,665.24 = 8,486.15 : x
  2. Step 2: Convert to fraction form
    33,110.15/49,665.24 = 8,486.15/x
  3. Step 3: Cross multiply
    33,110.15x = 49,665.24 × 8,486.15
  4. Step 4: Simplify right side
    33,110.15x = 421,466,428.10
  5. Step 5: Solve for x
    x = 421,466,428.10/33,110.15
  6. Step 6: Final answer
    x = 12,729.22

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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.