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Finding the Fourth Proportional to 7.34, 9.98 and 7.32

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Solution

The fourth proportional to 7.34, 9.98 and 7.32 is: 9.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.34 : 9.98 = 7.32 : x
  2. Step 2: Convert to fraction form
    7.34/9.98 = 7.32/x
  3. Step 3: Cross multiply
    7.34x = 9.98 × 7.32
  4. Step 4: Simplify right side
    7.34x = 73.05
  5. Step 5: Solve for x
    x = 73.05/7.34
  6. Step 6: Final answer
    x = 9.95

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.