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Finding the Fourth Proportional to 15.16, 22.76 and 14.52

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Solution

The fourth proportional to 15.16, 22.76 and 14.52 is: 21.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.16 : 22.76 = 14.52 : x
  2. Step 2: Convert to fraction form
    15.16/22.76 = 14.52/x
  3. Step 3: Cross multiply
    15.16x = 22.76 × 14.52
  4. Step 4: Simplify right side
    15.16x = 330.36
  5. Step 5: Solve for x
    x = 330.36/15.16
  6. Step 6: Final answer
    x = 21.79

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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.