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Finding the Fourth Proportional to 53.24, 73.48 and 33.84

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Solution

The fourth proportional to 53.24, 73.48 and 33.84 is: 46.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.24 : 73.48 = 33.84 : x
  2. Step 2: Convert to fraction form
    53.24/73.48 = 33.84/x
  3. Step 3: Cross multiply
    53.24x = 73.48 × 33.84
  4. Step 4: Simplify right side
    53.24x = 2,486.20
  5. Step 5: Solve for x
    x = 2,486.20/53.24
  6. Step 6: Final answer
    x = 46.70

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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.