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Finding the Fourth Proportional to 25.11, 37.63 and 9.06

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Solution

The fourth proportional to 25.11, 37.63 and 9.06 is: 13.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.11 : 37.63 = 9.06 : x
  2. Step 2: Convert to fraction form
    25.11/37.63 = 9.06/x
  3. Step 3: Cross multiply
    25.11x = 37.63 × 9.06
  4. Step 4: Simplify right side
    25.11x = 340.93
  5. Step 5: Solve for x
    x = 340.93/25.11
  6. Step 6: Final answer
    x = 13.58

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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.