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Finding the Fourth Proportional to 50.64, 75.94 and 22.14

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Solution

The fourth proportional to 50.64, 75.94 and 22.14 is: 33.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.64 : 75.94 = 22.14 : x
  2. Step 2: Convert to fraction form
    50.64/75.94 = 22.14/x
  3. Step 3: Cross multiply
    50.64x = 75.94 × 22.14
  4. Step 4: Simplify right side
    50.64x = 1,681.31
  5. Step 5: Solve for x
    x = 1,681.31/50.64
  6. Step 6: Final answer
    x = 33.20

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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.