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Finding the Third Proportional to 4,860 and 10,487

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Solution

The third proportional to 4,860 and 10,487 is: 22,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860 : 10,487 = 10,487 : x
  2. Step 2: Convert to fraction form
    4,860/10,487 = 10,487/x
  3. Step 3: Cross multiply
    4,860x = 10,487 × 10,487
  4. Step 4: Simplify right side
    4,860x = 109,977,169
  5. Step 5: Solve for x
    x = 109,977,169/4,860
  6. Step 6: Final answer
    x = 22,629.05

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.