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Finding the Fourth Proportional to 7.48, 11.14 and 7.46

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Solution

The fourth proportional to 7.48, 11.14 and 7.46 is: 11.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.48 : 11.14 = 7.46 : x
  2. Step 2: Convert to fraction form
    7.48/11.14 = 7.46/x
  3. Step 3: Cross multiply
    7.48x = 11.14 × 7.46
  4. Step 4: Simplify right side
    7.48x = 83.10
  5. Step 5: Solve for x
    x = 83.10/7.48
  6. Step 6: Final answer
    x = 11.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.