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Finding the Fourth Proportional to 74.27, 102.47 and 46.26

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Solution

The fourth proportional to 74.27, 102.47 and 46.26 is: 63.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.27 : 102.47 = 46.26 : x
  2. Step 2: Convert to fraction form
    74.27/102.47 = 46.26/x
  3. Step 3: Cross multiply
    74.27x = 102.47 × 46.26
  4. Step 4: Simplify right side
    74.27x = 4,740.03
  5. Step 5: Solve for x
    x = 4,740.03/74.27
  6. Step 6: Final answer
    x = 63.82

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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.