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Finding the Third Proportional to 7,160 and 11,396

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Solution

The third proportional to 7,160 and 11,396 is: 18,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160 : 11,396 = 11,396 : x
  2. Step 2: Convert to fraction form
    7,160/11,396 = 11,396/x
  3. Step 3: Cross multiply
    7,160x = 11,396 × 11,396
  4. Step 4: Simplify right side
    7,160x = 129,868,816
  5. Step 5: Solve for x
    x = 129,868,816/7,160
  6. Step 6: Final answer
    x = 18,138.10

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.