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Finding the Third Proportional to 6,887 and 15,516

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Solution

The third proportional to 6,887 and 15,516 is: 34,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887 : 15,516 = 15,516 : x
  2. Step 2: Convert to fraction form
    6,887/15,516 = 15,516/x
  3. Step 3: Cross multiply
    6,887x = 15,516 × 15,516
  4. Step 4: Simplify right side
    6,887x = 240,746,256
  5. Step 5: Solve for x
    x = 240,746,256/6,887
  6. Step 6: Final answer
    x = 34,956.62

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.