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Finding the Fourth Proportional to 14.93, 20.60 and 9.48

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Solution

The fourth proportional to 14.93, 20.60 and 9.48 is: 13.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.93 : 20.60 = 9.48 : x
  2. Step 2: Convert to fraction form
    14.93/20.60 = 9.48/x
  3. Step 3: Cross multiply
    14.93x = 20.60 × 9.48
  4. Step 4: Simplify right side
    14.93x = 195.14
  5. Step 5: Solve for x
    x = 195.14/14.93
  6. Step 6: Final answer
    x = 13.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.