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Finding the Fourth Proportional to 16.58, 24.85 and 6.94

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Solution

The fourth proportional to 16.58, 24.85 and 6.94 is: 10.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.58 : 24.85 = 6.94 : x
  2. Step 2: Convert to fraction form
    16.58/24.85 = 6.94/x
  3. Step 3: Cross multiply
    16.58x = 24.85 × 6.94
  4. Step 4: Simplify right side
    16.58x = 172.46
  5. Step 5: Solve for x
    x = 172.46/16.58
  6. Step 6: Final answer
    x = 10.40

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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.