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Finding the Fourth Proportional to 15.96, 23.94 and 14.70

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Solution

The fourth proportional to 15.96, 23.94 and 14.70 is: 22.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.96 : 23.94 = 14.70 : x
  2. Step 2: Convert to fraction form
    15.96/23.94 = 14.70/x
  3. Step 3: Cross multiply
    15.96x = 23.94 × 14.70
  4. Step 4: Simplify right side
    15.96x = 351.92
  5. Step 5: Solve for x
    x = 351.92/15.96
  6. Step 6: Final answer
    x = 22.05

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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.