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Finding the Third Proportional to 7,080 and 10,716

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Solution

The third proportional to 7,080 and 10,716 is: 16,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080 : 10,716 = 10,716 : x
  2. Step 2: Convert to fraction form
    7,080/10,716 = 10,716/x
  3. Step 3: Cross multiply
    7,080x = 10,716 × 10,716
  4. Step 4: Simplify right side
    7,080x = 114,832,656
  5. Step 5: Solve for x
    x = 114,832,656/7,080
  6. Step 6: Final answer
    x = 16,219.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.