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Finding the Fourth Proportional to 52.44, 72.36 and 35.22

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Solution

The fourth proportional to 52.44, 72.36 and 35.22 is: 48.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.44 : 72.36 = 35.22 : x
  2. Step 2: Convert to fraction form
    52.44/72.36 = 35.22/x
  3. Step 3: Cross multiply
    52.44x = 72.36 × 35.22
  4. Step 4: Simplify right side
    52.44x = 2,548.52
  5. Step 5: Solve for x
    x = 2,548.52/52.44
  6. Step 6: Final answer
    x = 48.60

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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.