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Finding the Fourth Proportional to 15.28, 22.92 and 4.59

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Solution

The fourth proportional to 15.28, 22.92 and 4.59 is: 6.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.28 : 22.92 = 4.59 : x
  2. Step 2: Convert to fraction form
    15.28/22.92 = 4.59/x
  3. Step 3: Cross multiply
    15.28x = 22.92 × 4.59
  4. Step 4: Simplify right side
    15.28x = 105.31
  5. Step 5: Solve for x
    x = 105.31/15.28
  6. Step 6: Final answer
    x = 6.89

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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.