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Finding the Fourth Proportional to 32.62, 48.64 and 28.06

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Solution

The fourth proportional to 32.62, 48.64 and 28.06 is: 41.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.62 : 48.64 = 28.06 : x
  2. Step 2: Convert to fraction form
    32.62/48.64 = 28.06/x
  3. Step 3: Cross multiply
    32.62x = 48.64 × 28.06
  4. Step 4: Simplify right side
    32.62x = 1,364.84
  5. Step 5: Solve for x
    x = 1,364.84/32.62
  6. Step 6: Final answer
    x = 41.84

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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.