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Finding the Fourth Proportional to 7.95, 10.95 and 7.51

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Solution

The fourth proportional to 7.95, 10.95 and 7.51 is: 10.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.95 : 10.95 = 7.51 : x
  2. Step 2: Convert to fraction form
    7.95/10.95 = 7.51/x
  3. Step 3: Cross multiply
    7.95x = 10.95 × 7.51
  4. Step 4: Simplify right side
    7.95x = 82.23
  5. Step 5: Solve for x
    x = 82.23/7.95
  6. Step 6: Final answer
    x = 10.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.