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Finding the Fourth Proportional to 49, 73.51 and 26.16

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Solution

The fourth proportional to 49, 73.51 and 26.16 is: 39.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49 : 73.51 = 26.16 : x
  2. Step 2: Convert to fraction form
    49/73.51 = 26.16/x
  3. Step 3: Cross multiply
    49x = 73.51 × 26.16
  4. Step 4: Simplify right side
    49x = 1,923.02
  5. Step 5: Solve for x
    x = 1,923.02/49
  6. Step 6: Final answer
    x = 39.25

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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.