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Finding the Third Proportional to 7,179.19 and 10,518.75

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Solution

The third proportional to 7,179.19 and 10,518.75 is: 15,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.19 : 10,518.75 = 10,518.75 : x
  2. Step 2: Convert to fraction form
    7,179.19/10,518.75 = 10,518.75/x
  3. Step 3: Cross multiply
    7,179.19x = 10,518.75 × 10,518.75
  4. Step 4: Simplify right side
    7,179.19x = 110,644,101.56
  5. Step 5: Solve for x
    x = 110,644,101.56/7,179.19
  6. Step 6: Final answer
    x = 15,411.79

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.