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Finding the Fourth Proportional to 61,959.36, 92,862.90 and 28,634.34

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Solution

The fourth proportional to 61,959.36, 92,862.90 and 28,634.34 is: 42,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,959.36 : 92,862.90 = 28,634.34 : x
  2. Step 2: Convert to fraction form
    61,959.36/92,862.90 = 28,634.34/x
  3. Step 3: Cross multiply
    61,959.36x = 92,862.90 × 28,634.34
  4. Step 4: Simplify right side
    61,959.36x = 2,659,067,851.99
  5. Step 5: Solve for x
    x = 2,659,067,851.99/61,959.36
  6. Step 6: Final answer
    x = 42,916.32

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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.