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Finding the Fourth Proportional to 11.07, 16.59 and 9.93

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Solution

The fourth proportional to 11.07, 16.59 and 9.93 is: 14.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.07 : 16.59 = 9.93 : x
  2. Step 2: Convert to fraction form
    11.07/16.59 = 9.93/x
  3. Step 3: Cross multiply
    11.07x = 16.59 × 9.93
  4. Step 4: Simplify right side
    11.07x = 164.65
  5. Step 5: Solve for x
    x = 164.65/11.07
  6. Step 6: Final answer
    x = 14.88

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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.