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Finding the Fourth Proportional to 74.36, 111.41 and 62.93

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Solution

The fourth proportional to 74.36, 111.41 and 62.93 is: 94.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.36 : 111.41 = 62.93 : x
  2. Step 2: Convert to fraction form
    74.36/111.41 = 62.93/x
  3. Step 3: Cross multiply
    74.36x = 111.41 × 62.93
  4. Step 4: Simplify right side
    74.36x = 7,011.00
  5. Step 5: Solve for x
    x = 7,011.00/74.36
  6. Step 6: Final answer
    x = 94.29

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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.