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Finding the Fourth Proportional to 44.95, 67.42 and 14.51

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Solution

The fourth proportional to 44.95, 67.42 and 14.51 is: 21.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.95 : 67.42 = 14.51 : x
  2. Step 2: Convert to fraction form
    44.95/67.42 = 14.51/x
  3. Step 3: Cross multiply
    44.95x = 67.42 × 14.51
  4. Step 4: Simplify right side
    44.95x = 978.06
  5. Step 5: Solve for x
    x = 978.06/44.95
  6. Step 6: Final answer
    x = 21.76

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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.