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Finding the Third Proportional to 2,756.53 and 7,415.30

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Solution

The third proportional to 2,756.53 and 7,415.30 is: 19,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.53 : 7,415.30 = 7,415.30 : x
  2. Step 2: Convert to fraction form
    2,756.53/7,415.30 = 7,415.30/x
  3. Step 3: Cross multiply
    2,756.53x = 7,415.30 × 7,415.30
  4. Step 4: Simplify right side
    2,756.53x = 54,986,627.74
  5. Step 5: Solve for x
    x = 54,986,627.74/2,756.53
  6. Step 6: Final answer
    x = 19,947.76

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.