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Finding the Fourth Proportional to 14.89, 22.48 and 14.68

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Solution

The fourth proportional to 14.89, 22.48 and 14.68 is: 22.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.89 : 22.48 = 14.68 : x
  2. Step 2: Convert to fraction form
    14.89/22.48 = 14.68/x
  3. Step 3: Cross multiply
    14.89x = 22.48 × 14.68
  4. Step 4: Simplify right side
    14.89x = 330.01
  5. Step 5: Solve for x
    x = 330.01/14.89
  6. Step 6: Final answer
    x = 22.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.