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Finding the Fourth Proportional to 53.38, 73.50 and 46.82

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Solution

The fourth proportional to 53.38, 73.50 and 46.82 is: 64.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.38 : 73.50 = 46.82 : x
  2. Step 2: Convert to fraction form
    53.38/73.50 = 46.82/x
  3. Step 3: Cross multiply
    53.38x = 73.50 × 46.82
  4. Step 4: Simplify right side
    53.38x = 3,441.27
  5. Step 5: Solve for x
    x = 3,441.27/53.38
  6. Step 6: Final answer
    x = 64.47

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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.