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Finding the Fourth Proportional to 10.98, 16.36 and 10.08

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Solution

The fourth proportional to 10.98, 16.36 and 10.08 is: 15.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.98 : 16.36 = 10.08 : x
  2. Step 2: Convert to fraction form
    10.98/16.36 = 10.08/x
  3. Step 3: Cross multiply
    10.98x = 16.36 × 10.08
  4. Step 4: Simplify right side
    10.98x = 164.91
  5. Step 5: Solve for x
    x = 164.91/10.98
  6. Step 6: Final answer
    x = 15.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.