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Finding the Fourth Proportional to 10.16, 14.01 and 9.24

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Solution

The fourth proportional to 10.16, 14.01 and 9.24 is: 12.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.16 : 14.01 = 9.24 : x
  2. Step 2: Convert to fraction form
    10.16/14.01 = 9.24/x
  3. Step 3: Cross multiply
    10.16x = 14.01 × 9.24
  4. Step 4: Simplify right side
    10.16x = 129.45
  5. Step 5: Solve for x
    x = 129.45/10.16
  6. Step 6: Final answer
    x = 12.75

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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.