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Finding the Fourth Proportional to 49.68, 68.56 and 46.52

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Solution

The fourth proportional to 49.68, 68.56 and 46.52 is: 64.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.68 : 68.56 = 46.52 : x
  2. Step 2: Convert to fraction form
    49.68/68.56 = 46.52/x
  3. Step 3: Cross multiply
    49.68x = 68.56 × 46.52
  4. Step 4: Simplify right side
    49.68x = 3,189.41
  5. Step 5: Solve for x
    x = 3,189.41/49.68
  6. Step 6: Final answer
    x = 64.20

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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.