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Finding the Third Proportional to 7,186 and 10,543

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Solution

The third proportional to 7,186 and 10,543 is: 15,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186 : 10,543 = 10,543 : x
  2. Step 2: Convert to fraction form
    7,186/10,543 = 10,543/x
  3. Step 3: Cross multiply
    7,186x = 10,543 × 10,543
  4. Step 4: Simplify right side
    7,186x = 111,154,849
  5. Step 5: Solve for x
    x = 111,154,849/7,186
  6. Step 6: Final answer
    x = 15,468.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.