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Finding the Fourth Proportional to 61,963.36, 92,868.88 and 28,638.36

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Solution

The fourth proportional to 61,963.36, 92,868.88 and 28,638.36 is: 42,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.36 : 92,868.88 = 28,638.36 : x
  2. Step 2: Convert to fraction form
    61,963.36/92,868.88 = 28,638.36/x
  3. Step 3: Cross multiply
    61,963.36x = 92,868.88 × 28,638.36
  4. Step 4: Simplify right side
    61,963.36x = 2,659,612,418.24
  5. Step 5: Solve for x
    x = 2,659,612,418.24/61,963.36
  6. Step 6: Final answer
    x = 42,922.34

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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.