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Finding the Fourth Proportional to 14.68, 22 and 11.46

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Solution

The fourth proportional to 14.68, 22 and 11.46 is: 17.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.68 : 22 = 11.46 : x
  2. Step 2: Convert to fraction form
    14.68/22 = 11.46/x
  3. Step 3: Cross multiply
    14.68x = 22 × 11.46
  4. Step 4: Simplify right side
    14.68x = 252.12
  5. Step 5: Solve for x
    x = 252.12/14.68
  6. Step 6: Final answer
    x = 17.17

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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.