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Finding the Fourth Proportional to 46.24, 68.84 and 45.52

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Solution

The fourth proportional to 46.24, 68.84 and 45.52 is: 67.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.24 : 68.84 = 45.52 : x
  2. Step 2: Convert to fraction form
    46.24/68.84 = 45.52/x
  3. Step 3: Cross multiply
    46.24x = 68.84 × 45.52
  4. Step 4: Simplify right side
    46.24x = 3,133.60
  5. Step 5: Solve for x
    x = 3,133.60/46.24
  6. Step 6: Final answer
    x = 67.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.