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Finding the Fourth Proportional to 8,774.31, 12,108.45 and 4,795.41

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Solution

The fourth proportional to 8,774.31, 12,108.45 and 4,795.41 is: 6,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.31 : 12,108.45 = 4,795.41 : x
  2. Step 2: Convert to fraction form
    8,774.31/12,108.45 = 4,795.41/x
  3. Step 3: Cross multiply
    8,774.31x = 12,108.45 × 4,795.41
  4. Step 4: Simplify right side
    8,774.31x = 58,064,982.21
  5. Step 5: Solve for x
    x = 58,064,982.21/8,774.31
  6. Step 6: Final answer
    x = 6,617.61

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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.