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Finding the Third Proportional to 915 and 2,382

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Solution

The third proportional to 915 and 2,382 is: 6,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    915 : 2,382 = 2,382 : x
  2. Step 2: Convert to fraction form
    915/2,382 = 2,382/x
  3. Step 3: Cross multiply
    915x = 2,382 × 2,382
  4. Step 4: Simplify right side
    915x = 5,673,924
  5. Step 5: Solve for x
    x = 5,673,924/915
  6. Step 6: Final answer
    x = 6,201.01

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.