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Finding the Fourth Proportional to 8,508.92, 11,742.10 and 4,731.90

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Solution

The fourth proportional to 8,508.92, 11,742.10 and 4,731.90 is: 6,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.92 : 11,742.10 = 4,731.90 : x
  2. Step 2: Convert to fraction form
    8,508.92/11,742.10 = 4,731.90/x
  3. Step 3: Cross multiply
    8,508.92x = 11,742.10 × 4,731.90
  4. Step 4: Simplify right side
    8,508.92x = 55,562,442.99
  5. Step 5: Solve for x
    x = 55,562,442.99/8,508.92
  6. Step 6: Final answer
    x = 6,529.91

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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.