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Finding the Fourth Proportional to 92.96, 139.38 and 32.07

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Solution

The fourth proportional to 92.96, 139.38 and 32.07 is: 48.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.96 : 139.38 = 32.07 : x
  2. Step 2: Convert to fraction form
    92.96/139.38 = 32.07/x
  3. Step 3: Cross multiply
    92.96x = 139.38 × 32.07
  4. Step 4: Simplify right side
    92.96x = 4,469.92
  5. Step 5: Solve for x
    x = 4,469.92/92.96
  6. Step 6: Final answer
    x = 48.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.