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Finding the Fourth Proportional to 10.41, 15.64 and 9.73

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Solution

The fourth proportional to 10.41, 15.64 and 9.73 is: 14.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.41 : 15.64 = 9.73 : x
  2. Step 2: Convert to fraction form
    10.41/15.64 = 9.73/x
  3. Step 3: Cross multiply
    10.41x = 15.64 × 9.73
  4. Step 4: Simplify right side
    10.41x = 152.11
  5. Step 5: Solve for x
    x = 152.11/10.41
  6. Step 6: Final answer
    x = 14.61

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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.