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Finding the Fourth Proportional to 61,191.38, 91,792.53 and 19,071.82

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Solution

The fourth proportional to 61,191.38, 91,792.53 and 19,071.82 is: 28,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.38 : 91,792.53 = 19,071.82 : x
  2. Step 2: Convert to fraction form
    61,191.38/91,792.53 = 19,071.82/x
  3. Step 3: Cross multiply
    61,191.38x = 91,792.53 × 19,071.82
  4. Step 4: Simplify right side
    61,191.38x = 1,750,650,150.54
  5. Step 5: Solve for x
    x = 1,750,650,150.54/61,191.38
  6. Step 6: Final answer
    x = 28,609.43

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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.