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Finding the Fourth Proportional to 39.22, 58.50 and 32.84

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Solution

The fourth proportional to 39.22, 58.50 and 32.84 is: 48.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.22 : 58.50 = 32.84 : x
  2. Step 2: Convert to fraction form
    39.22/58.50 = 32.84/x
  3. Step 3: Cross multiply
    39.22x = 58.50 × 32.84
  4. Step 4: Simplify right side
    39.22x = 1,921.07
  5. Step 5: Solve for x
    x = 1,921.07/39.22
  6. Step 6: Final answer
    x = 48.98

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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.