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Finding the Third Proportional to 4.64 and 9.42

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Solution

The third proportional to 4.64 and 9.42 is: 19.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.64 : 9.42 = 9.42 : x
  2. Step 2: Convert to fraction form
    4.64/9.42 = 9.42/x
  3. Step 3: Cross multiply
    4.64x = 9.42 × 9.42
  4. Step 4: Simplify right side
    4.64x = 88.77
  5. Step 5: Solve for x
    x = 88.77/4.64
  6. Step 6: Final answer
    x = 19.13

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.