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Finding the Fourth Proportional to 8,914.67, 13,372.34 and 3,071.28

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Solution

The fourth proportional to 8,914.67, 13,372.34 and 3,071.28 is: 4,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.67 : 13,372.34 = 3,071.28 : x
  2. Step 2: Convert to fraction form
    8,914.67/13,372.34 = 3,071.28/x
  3. Step 3: Cross multiply
    8,914.67x = 13,372.34 × 3,071.28
  4. Step 4: Simplify right side
    8,914.67x = 41,070,185.04
  5. Step 5: Solve for x
    x = 41,070,185.04/8,914.67
  6. Step 6: Final answer
    x = 4,607.04

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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.