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Finding the Fourth Proportional to 16.19, 22.35 and 11.33

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Solution

The fourth proportional to 16.19, 22.35 and 11.33 is: 15.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.19 : 22.35 = 11.33 : x
  2. Step 2: Convert to fraction form
    16.19/22.35 = 11.33/x
  3. Step 3: Cross multiply
    16.19x = 22.35 × 11.33
  4. Step 4: Simplify right side
    16.19x = 253.23
  5. Step 5: Solve for x
    x = 253.23/16.19
  6. Step 6: Final answer
    x = 15.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.