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Finding the Fourth Proportional to 61,631.82, 92,447.46 and 22,188.78

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Solution

The fourth proportional to 61,631.82, 92,447.46 and 22,188.78 is: 33,283.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,631.82 : 92,447.46 = 22,188.78 : x
  2. Step 2: Convert to fraction form
    61,631.82/92,447.46 = 22,188.78/x
  3. Step 3: Cross multiply
    61,631.82x = 92,447.46 × 22,188.78
  4. Step 4: Simplify right side
    61,631.82x = 2,051,296,351.50
  5. Step 5: Solve for x
    x = 2,051,296,351.50/61,631.82
  6. Step 6: Final answer
    x = 33,283.07

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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.