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Finding the Fourth Proportional to 15.94, 23.94 and 15.16

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Solution

The fourth proportional to 15.94, 23.94 and 15.16 is: 22.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.94 : 23.94 = 15.16 : x
  2. Step 2: Convert to fraction form
    15.94/23.94 = 15.16/x
  3. Step 3: Cross multiply
    15.94x = 23.94 × 15.16
  4. Step 4: Simplify right side
    15.94x = 362.93
  5. Step 5: Solve for x
    x = 362.93/15.94
  6. Step 6: Final answer
    x = 22.77

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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.