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Finding the Fourth Proportional to 14.86, 22.29 and 4.17

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Solution

The fourth proportional to 14.86, 22.29 and 4.17 is: 6.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.86 : 22.29 = 4.17 : x
  2. Step 2: Convert to fraction form
    14.86/22.29 = 4.17/x
  3. Step 3: Cross multiply
    14.86x = 22.29 × 4.17
  4. Step 4: Simplify right side
    14.86x = 92.99
  5. Step 5: Solve for x
    x = 92.99/14.86
  6. Step 6: Final answer
    x = 6.26

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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.