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Finding the Third Proportional to 5,868 and 12,321

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Solution

The third proportional to 5,868 and 12,321 is: 25,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868 : 12,321 = 12,321 : x
  2. Step 2: Convert to fraction form
    5,868/12,321 = 12,321/x
  3. Step 3: Cross multiply
    5,868x = 12,321 × 12,321
  4. Step 4: Simplify right side
    5,868x = 151,807,041
  5. Step 5: Solve for x
    x = 151,807,041/5,868
  6. Step 6: Final answer
    x = 25,870.32

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.