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Finding the Third Proportional to 5,472 and 13,230

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Solution

The third proportional to 5,472 and 13,230 is: 31,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472 : 13,230 = 13,230 : x
  2. Step 2: Convert to fraction form
    5,472/13,230 = 13,230/x
  3. Step 3: Cross multiply
    5,472x = 13,230 × 13,230
  4. Step 4: Simplify right side
    5,472x = 175,032,900
  5. Step 5: Solve for x
    x = 175,032,900/5,472
  6. Step 6: Final answer
    x = 31,987.01

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.