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Finding the Fourth Proportional to 74.73, 112.04 and 23.35

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Solution

The fourth proportional to 74.73, 112.04 and 23.35 is: 35.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.73 : 112.04 = 23.35 : x
  2. Step 2: Convert to fraction form
    74.73/112.04 = 23.35/x
  3. Step 3: Cross multiply
    74.73x = 112.04 × 23.35
  4. Step 4: Simplify right side
    74.73x = 2,616.47
  5. Step 5: Solve for x
    x = 2,616.47/74.73
  6. Step 6: Final answer
    x = 35.01

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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.