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Finding the Fourth Proportional to 14.63, 20.16 and 14.00

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Solution

The fourth proportional to 14.63, 20.16 and 14.00 is: 19.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.63 : 20.16 = 14.00 : x
  2. Step 2: Convert to fraction form
    14.63/20.16 = 14.00/x
  3. Step 3: Cross multiply
    14.63x = 20.16 × 14.00
  4. Step 4: Simplify right side
    14.63x = 282.14
  5. Step 5: Solve for x
    x = 282.14/14.63
  6. Step 6: Final answer
    x = 19.29

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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.