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Finding the Third Proportional to 9.47 and 13.94

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Solution

The third proportional to 9.47 and 13.94 is: 20.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.47 : 13.94 = 13.94 : x
  2. Step 2: Convert to fraction form
    9.47/13.94 = 13.94/x
  3. Step 3: Cross multiply
    9.47x = 13.94 × 13.94
  4. Step 4: Simplify right side
    9.47x = 194.25
  5. Step 5: Solve for x
    x = 194.25/9.47
  6. Step 6: Final answer
    x = 20.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.