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Finding the Fourth Proportional to 23.42, 35.10 and 9.88

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Solution

The fourth proportional to 23.42, 35.10 and 9.88 is: 14.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.42 : 35.10 = 9.88 : x
  2. Step 2: Convert to fraction form
    23.42/35.10 = 9.88/x
  3. Step 3: Cross multiply
    23.42x = 35.10 × 9.88
  4. Step 4: Simplify right side
    23.42x = 346.79
  5. Step 5: Solve for x
    x = 346.79/23.42
  6. Step 6: Final answer
    x = 14.81

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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.