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Finding the Third Proportional to 6,240 and 9,345

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Solution

The third proportional to 6,240 and 9,345 is: 13,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240 : 9,345 = 9,345 : x
  2. Step 2: Convert to fraction form
    6,240/9,345 = 9,345/x
  3. Step 3: Cross multiply
    6,240x = 9,345 × 9,345
  4. Step 4: Simplify right side
    6,240x = 87,329,025
  5. Step 5: Solve for x
    x = 87,329,025/6,240
  6. Step 6: Final answer
    x = 13,995.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.