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Finding the Fourth Proportional to 61,344.28, 92,005.98 and 19,791.28

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Solution

The fourth proportional to 61,344.28, 92,005.98 and 19,791.28 is: 29,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,344.28 : 92,005.98 = 19,791.28 : x
  2. Step 2: Convert to fraction form
    61,344.28/92,005.98 = 19,791.28/x
  3. Step 3: Cross multiply
    61,344.28x = 92,005.98 × 19,791.28
  4. Step 4: Simplify right side
    61,344.28x = 1,820,916,111.85
  5. Step 5: Solve for x
    x = 1,820,916,111.85/61,344.28
  6. Step 6: Final answer
    x = 29,683.55

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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.