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Finding the Third Proportional to 5,972 and 12,928

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Solution

The third proportional to 5,972 and 12,928 is: 27,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,972 : 12,928 = 12,928 : x
  2. Step 2: Convert to fraction form
    5,972/12,928 = 12,928/x
  3. Step 3: Cross multiply
    5,972x = 12,928 × 12,928
  4. Step 4: Simplify right side
    5,972x = 167,133,184
  5. Step 5: Solve for x
    x = 167,133,184/5,972
  6. Step 6: Final answer
    x = 27,986.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.