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Finding the Third Proportional to 2.96 and 4.72

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Solution

The third proportional to 2.96 and 4.72 is: 7.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.96 : 4.72 = 4.72 : x
  2. Step 2: Convert to fraction form
    2.96/4.72 = 4.72/x
  3. Step 3: Cross multiply
    2.96x = 4.72 × 4.72
  4. Step 4: Simplify right side
    2.96x = 22.29
  5. Step 5: Solve for x
    x = 22.29/2.96
  6. Step 6: Final answer
    x = 7.53

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.