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Finding the Fourth Proportional to 49.18, 73.75 and 26.35

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Solution

The fourth proportional to 49.18, 73.75 and 26.35 is: 39.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.18 : 73.75 = 26.35 : x
  2. Step 2: Convert to fraction form
    49.18/73.75 = 26.35/x
  3. Step 3: Cross multiply
    49.18x = 73.75 × 26.35
  4. Step 4: Simplify right side
    49.18x = 1,943.31
  5. Step 5: Solve for x
    x = 1,943.31/49.18
  6. Step 6: Final answer
    x = 39.51

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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.