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Finding the Fourth Proportional to 53.97, 74.48 and 32.14

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Solution

The fourth proportional to 53.97, 74.48 and 32.14 is: 44.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.97 : 74.48 = 32.14 : x
  2. Step 2: Convert to fraction form
    53.97/74.48 = 32.14/x
  3. Step 3: Cross multiply
    53.97x = 74.48 × 32.14
  4. Step 4: Simplify right side
    53.97x = 2,393.48
  5. Step 5: Solve for x
    x = 2,393.48/53.97
  6. Step 6: Final answer
    x = 44.35

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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.