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Finding the Fourth Proportional to 10.33, 15.46 and 9.53

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Solution

The fourth proportional to 10.33, 15.46 and 9.53 is: 14.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.33 : 15.46 = 9.53 : x
  2. Step 2: Convert to fraction form
    10.33/15.46 = 9.53/x
  3. Step 3: Cross multiply
    10.33x = 15.46 × 9.53
  4. Step 4: Simplify right side
    10.33x = 147.33
  5. Step 5: Solve for x
    x = 147.33/10.33
  6. Step 6: Final answer
    x = 14.26

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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.