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Finding the Third Proportional to 5,410 and 7,305

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Solution

The third proportional to 5,410 and 7,305 is: 9,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410 : 7,305 = 7,305 : x
  2. Step 2: Convert to fraction form
    5,410/7,305 = 7,305/x
  3. Step 3: Cross multiply
    5,410x = 7,305 × 7,305
  4. Step 4: Simplify right side
    5,410x = 53,363,025
  5. Step 5: Solve for x
    x = 53,363,025/5,410
  6. Step 6: Final answer
    x = 9,863.78

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.