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Finding the Fourth Proportional to 9.88, 14.82 and 7.35

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Solution

The fourth proportional to 9.88, 14.82 and 7.35 is: 11.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.88 : 14.82 = 7.35 : x
  2. Step 2: Convert to fraction form
    9.88/14.82 = 7.35/x
  3. Step 3: Cross multiply
    9.88x = 14.82 × 7.35
  4. Step 4: Simplify right side
    9.88x = 108.84
  5. Step 5: Solve for x
    x = 108.84/9.88
  6. Step 6: Final answer
    x = 11.02

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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.