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Finding the Third Proportional to 7,152 and 11,080

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Solution

The third proportional to 7,152 and 11,080 is: 17,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152 : 11,080 = 11,080 : x
  2. Step 2: Convert to fraction form
    7,152/11,080 = 11,080/x
  3. Step 3: Cross multiply
    7,152x = 11,080 × 11,080
  4. Step 4: Simplify right side
    7,152x = 122,766,400
  5. Step 5: Solve for x
    x = 122,766,400/7,152
  6. Step 6: Final answer
    x = 17,165.32

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.