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Finding the Fourth Proportional to 25.02, 34.50 and 23.19

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Solution

The fourth proportional to 25.02, 34.50 and 23.19 is: 31.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.02 : 34.50 = 23.19 : x
  2. Step 2: Convert to fraction form
    25.02/34.50 = 23.19/x
  3. Step 3: Cross multiply
    25.02x = 34.50 × 23.19
  4. Step 4: Simplify right side
    25.02x = 800.06
  5. Step 5: Solve for x
    x = 800.06/25.02
  6. Step 6: Final answer
    x = 31.98

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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.