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Finding the Fourth Proportional to 62.99, 94.41 and 40.17

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Solution

The fourth proportional to 62.99, 94.41 and 40.17 is: 60.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.99 : 94.41 = 40.17 : x
  2. Step 2: Convert to fraction form
    62.99/94.41 = 40.17/x
  3. Step 3: Cross multiply
    62.99x = 94.41 × 40.17
  4. Step 4: Simplify right side
    62.99x = 3,792.45
  5. Step 5: Solve for x
    x = 3,792.45/62.99
  6. Step 6: Final answer
    x = 60.21

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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.