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Finding the Third Proportional to 2,932 and 6,440

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Solution

The third proportional to 2,932 and 6,440 is: 14,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932 : 6,440 = 6,440 : x
  2. Step 2: Convert to fraction form
    2,932/6,440 = 6,440/x
  3. Step 3: Cross multiply
    2,932x = 6,440 × 6,440
  4. Step 4: Simplify right side
    2,932x = 41,473,600
  5. Step 5: Solve for x
    x = 41,473,600/2,932
  6. Step 6: Final answer
    x = 14,145.16

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.