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Finding the Third Proportional to 4,516 and 9,876

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Solution

The third proportional to 4,516 and 9,876 is: 21,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,516 : 9,876 = 9,876 : x
  2. Step 2: Convert to fraction form
    4,516/9,876 = 9,876/x
  3. Step 3: Cross multiply
    4,516x = 9,876 × 9,876
  4. Step 4: Simplify right side
    4,516x = 97,535,376
  5. Step 5: Solve for x
    x = 97,535,376/4,516
  6. Step 6: Final answer
    x = 21,597.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.