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Finding the Third Proportional to 9.31 and 10

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Solution

The third proportional to 9.31 and 10 is: 10.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.31 : 10 = 10 : x
  2. Step 2: Convert to fraction form
    9.31/10 = 10/x
  3. Step 3: Cross multiply
    9.31x = 10 × 10
  4. Step 4: Simplify right side
    9.31x = 100
  5. Step 5: Solve for x
    x = 100/9.31
  6. Step 6: Final answer
    x = 10.74

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.