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Finding the Fourth Proportional to 25.18, 37.72 and 16.02

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Solution

The fourth proportional to 25.18, 37.72 and 16.02 is: 24.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.18 : 37.72 = 16.02 : x
  2. Step 2: Convert to fraction form
    25.18/37.72 = 16.02/x
  3. Step 3: Cross multiply
    25.18x = 37.72 × 16.02
  4. Step 4: Simplify right side
    25.18x = 604.27
  5. Step 5: Solve for x
    x = 604.27/25.18
  6. Step 6: Final answer
    x = 24.00

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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.