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Finding the Fourth Proportional to 14.66, 21.98 and 10.11

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Solution

The fourth proportional to 14.66, 21.98 and 10.11 is: 15.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.66 : 21.98 = 10.11 : x
  2. Step 2: Convert to fraction form
    14.66/21.98 = 10.11/x
  3. Step 3: Cross multiply
    14.66x = 21.98 × 10.11
  4. Step 4: Simplify right side
    14.66x = 222.33
  5. Step 5: Solve for x
    x = 222.33/14.66
  6. Step 6: Final answer
    x = 15.17

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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.