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Finding the Fourth Proportional to 34.16, 47.18 and 26.48

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Solution

The fourth proportional to 34.16, 47.18 and 26.48 is: 36.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.16 : 47.18 = 26.48 : x
  2. Step 2: Convert to fraction form
    34.16/47.18 = 26.48/x
  3. Step 3: Cross multiply
    34.16x = 47.18 × 26.48
  4. Step 4: Simplify right side
    34.16x = 1,249.26
  5. Step 5: Solve for x
    x = 1,249.26/34.16
  6. Step 6: Final answer
    x = 36.57

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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.