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Finding the Fourth Proportional to 31.03, 46.53 and 9.36

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Solution

The fourth proportional to 31.03, 46.53 and 9.36 is: 14.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.03 : 46.53 = 9.36 : x
  2. Step 2: Convert to fraction form
    31.03/46.53 = 9.36/x
  3. Step 3: Cross multiply
    31.03x = 46.53 × 9.36
  4. Step 4: Simplify right side
    31.03x = 435.33
  5. Step 5: Solve for x
    x = 435.33/31.03
  6. Step 6: Final answer
    x = 14.03

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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.