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Finding the Fourth Proportional to 15.74, 23.60 and 10.70

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Solution

The fourth proportional to 15.74, 23.60 and 10.70 is: 16.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.74 : 23.60 = 10.70 : x
  2. Step 2: Convert to fraction form
    15.74/23.60 = 10.70/x
  3. Step 3: Cross multiply
    15.74x = 23.60 × 10.70
  4. Step 4: Simplify right side
    15.74x = 252.38
  5. Step 5: Solve for x
    x = 252.38/15.74
  6. Step 6: Final answer
    x = 16.04

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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.