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Finding the Third Proportional to 4,032.28 and 8,611.31

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Solution

The third proportional to 4,032.28 and 8,611.31 is: 18,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,032.28 : 8,611.31 = 8,611.31 : x
  2. Step 2: Convert to fraction form
    4,032.28/8,611.31 = 8,611.31/x
  3. Step 3: Cross multiply
    4,032.28x = 8,611.31 × 8,611.31
  4. Step 4: Simplify right side
    4,032.28x = 74,154,702.97
  5. Step 5: Solve for x
    x = 74,154,702.97/4,032.28
  6. Step 6: Final answer
    x = 18,390.26

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.