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Finding the Third Proportional to 4,985 and 10,745

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Solution

The third proportional to 4,985 and 10,745 is: 23,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985 : 10,745 = 10,745 : x
  2. Step 2: Convert to fraction form
    4,985/10,745 = 10,745/x
  3. Step 3: Cross multiply
    4,985x = 10,745 × 10,745
  4. Step 4: Simplify right side
    4,985x = 115,455,025
  5. Step 5: Solve for x
    x = 115,455,025/4,985
  6. Step 6: Final answer
    x = 23,160.49

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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.