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Finding the Fourth Proportional to 9.64, 14.46 and 6.97

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Solution

The fourth proportional to 9.64, 14.46 and 6.97 is: 10.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.64 : 14.46 = 6.97 : x
  2. Step 2: Convert to fraction form
    9.64/14.46 = 6.97/x
  3. Step 3: Cross multiply
    9.64x = 14.46 × 6.97
  4. Step 4: Simplify right side
    9.64x = 100.71
  5. Step 5: Solve for x
    x = 100.71/9.64
  6. Step 6: Final answer
    x = 10.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.