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Finding the Third Proportional to 7,182 and 11,090

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Solution

The third proportional to 7,182 and 11,090 is: 17,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182 : 11,090 = 11,090 : x
  2. Step 2: Convert to fraction form
    7,182/11,090 = 11,090/x
  3. Step 3: Cross multiply
    7,182x = 11,090 × 11,090
  4. Step 4: Simplify right side
    7,182x = 122,988,100
  5. Step 5: Solve for x
    x = 122,988,100/7,182
  6. Step 6: Final answer
    x = 17,124.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.