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Finding the Fourth Proportional to 53.35, 73.59 and 34.94

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Solution

The fourth proportional to 53.35, 73.59 and 34.94 is: 48.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.35 : 73.59 = 34.94 : x
  2. Step 2: Convert to fraction form
    53.35/73.59 = 34.94/x
  3. Step 3: Cross multiply
    53.35x = 73.59 × 34.94
  4. Step 4: Simplify right side
    53.35x = 2,571.23
  5. Step 5: Solve for x
    x = 2,571.23/53.35
  6. Step 6: Final answer
    x = 48.20

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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.