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Finding the Fourth Proportional to 9.47, 14.19 and 4.96

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Solution

The fourth proportional to 9.47, 14.19 and 4.96 is: 7.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.47 : 14.19 = 4.96 : x
  2. Step 2: Convert to fraction form
    9.47/14.19 = 4.96/x
  3. Step 3: Cross multiply
    9.47x = 14.19 × 4.96
  4. Step 4: Simplify right side
    9.47x = 70.38
  5. Step 5: Solve for x
    x = 70.38/9.47
  6. Step 6: Final answer
    x = 7.43

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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.