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Finding the Fourth Proportional to 9.35, 14 and 6.77

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Solution

The fourth proportional to 9.35, 14 and 6.77 is: 10.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.35 : 14 = 6.77 : x
  2. Step 2: Convert to fraction form
    9.35/14 = 6.77/x
  3. Step 3: Cross multiply
    9.35x = 14 × 6.77
  4. Step 4: Simplify right side
    9.35x = 94.71
  5. Step 5: Solve for x
    x = 94.71/9.35
  6. Step 6: Final answer
    x = 10.13

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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.