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Finding the Fourth Proportional to 8,634.92, 11,916.11 and 4,908.92

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Solution

The fourth proportional to 8,634.92, 11,916.11 and 4,908.92 is: 6,774.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.92 : 11,916.11 = 4,908.92 : x
  2. Step 2: Convert to fraction form
    8,634.92/11,916.11 = 4,908.92/x
  3. Step 3: Cross multiply
    8,634.92x = 11,916.11 × 4,908.92
  4. Step 4: Simplify right side
    8,634.92x = 58,495,146.58
  5. Step 5: Solve for x
    x = 58,495,146.58/8,634.92
  6. Step 6: Final answer
    x = 6,774.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.