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Finding the Fourth Proportional to 25.16, 34.63 and 22.62

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Solution

The fourth proportional to 25.16, 34.63 and 22.62 is: 31.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.16 : 34.63 = 22.62 : x
  2. Step 2: Convert to fraction form
    25.16/34.63 = 22.62/x
  3. Step 3: Cross multiply
    25.16x = 34.63 × 22.62
  4. Step 4: Simplify right side
    25.16x = 783.40
  5. Step 5: Solve for x
    x = 783.40/25.16
  6. Step 6: Final answer
    x = 31.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.