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Finding the Third Proportional to 7,449 and 8,299.50

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Solution

The third proportional to 7,449 and 8,299.50 is: 9,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449 : 8,299.50 = 8,299.50 : x
  2. Step 2: Convert to fraction form
    7,449/8,299.50 = 8,299.50/x
  3. Step 3: Cross multiply
    7,449x = 8,299.50 × 8,299.50
  4. Step 4: Simplify right side
    7,449x = 68,881,700.25
  5. Step 5: Solve for x
    x = 68,881,700.25/7,449
  6. Step 6: Final answer
    x = 9,247.11

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.