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Finding the Third Proportional to 7.47 and 14.94

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Solution

The third proportional to 7.47 and 14.94 is: 29.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.47 : 14.94 = 14.94 : x
  2. Step 2: Convert to fraction form
    7.47/14.94 = 14.94/x
  3. Step 3: Cross multiply
    7.47x = 14.94 × 14.94
  4. Step 4: Simplify right side
    7.47x = 223.09
  5. Step 5: Solve for x
    x = 223.09/7.47
  6. Step 6: Final answer
    x = 29.87

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Why These Related Problems?

These problems maintain the same ratio (2.00) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.