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Finding the Third Proportional to 5,644 and 7,485

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Solution

The third proportional to 5,644 and 7,485 is: 9,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644 : 7,485 = 7,485 : x
  2. Step 2: Convert to fraction form
    5,644/7,485 = 7,485/x
  3. Step 3: Cross multiply
    5,644x = 7,485 × 7,485
  4. Step 4: Simplify right side
    5,644x = 56,025,225
  5. Step 5: Solve for x
    x = 56,025,225/5,644
  6. Step 6: Final answer
    x = 9,926.51

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.