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Finding the Fourth Proportional to 53.98, 74.40 and 44.14

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Solution

The fourth proportional to 53.98, 74.40 and 44.14 is: 60.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.98 : 74.40 = 44.14 : x
  2. Step 2: Convert to fraction form
    53.98/74.40 = 44.14/x
  3. Step 3: Cross multiply
    53.98x = 74.40 × 44.14
  4. Step 4: Simplify right side
    53.98x = 3,284.02
  5. Step 5: Solve for x
    x = 3,284.02/53.98
  6. Step 6: Final answer
    x = 60.84

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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.