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Finding the Fourth Proportional to 9.75, 14.70 and 9.27

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Solution

The fourth proportional to 9.75, 14.70 and 9.27 is: 13.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.75 : 14.70 = 9.27 : x
  2. Step 2: Convert to fraction form
    9.75/14.70 = 9.27/x
  3. Step 3: Cross multiply
    9.75x = 14.70 × 9.27
  4. Step 4: Simplify right side
    9.75x = 136.27
  5. Step 5: Solve for x
    x = 136.27/9.75
  6. Step 6: Final answer
    x = 13.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.