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Finding the Fourth Proportional to 8,583.45, 12,881.25 and 5,071.29

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Solution

The fourth proportional to 8,583.45, 12,881.25 and 5,071.29 is: 7,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.45 : 12,881.25 = 5,071.29 : x
  2. Step 2: Convert to fraction form
    8,583.45/12,881.25 = 5,071.29/x
  3. Step 3: Cross multiply
    8,583.45x = 12,881.25 × 5,071.29
  4. Step 4: Simplify right side
    8,583.45x = 65,324,554.31
  5. Step 5: Solve for x
    x = 65,324,554.31/8,583.45
  6. Step 6: Final answer
    x = 7,610.52

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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.