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Finding the Third Proportional to 7,112 and 11,362

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Solution

The third proportional to 7,112 and 11,362 is: 18,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112 : 11,362 = 11,362 : x
  2. Step 2: Convert to fraction form
    7,112/11,362 = 11,362/x
  3. Step 3: Cross multiply
    7,112x = 11,362 × 11,362
  4. Step 4: Simplify right side
    7,112x = 129,095,044
  5. Step 5: Solve for x
    x = 129,095,044/7,112
  6. Step 6: Final answer
    x = 18,151.72

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.