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Finding the Fourth Proportional to 31.16, 46.66 and 24

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Solution

The fourth proportional to 31.16, 46.66 and 24 is: 35.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.16 : 46.66 = 24 : x
  2. Step 2: Convert to fraction form
    31.16/46.66 = 24/x
  3. Step 3: Cross multiply
    31.16x = 46.66 × 24
  4. Step 4: Simplify right side
    31.16x = 1,119.84
  5. Step 5: Solve for x
    x = 1,119.84/31.16
  6. Step 6: Final answer
    x = 35.94

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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.