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Finding the Fourth Proportional to 35.49, 48.98 and 23.21

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Solution

The fourth proportional to 35.49, 48.98 and 23.21 is: 32.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.49 : 48.98 = 23.21 : x
  2. Step 2: Convert to fraction form
    35.49/48.98 = 23.21/x
  3. Step 3: Cross multiply
    35.49x = 48.98 × 23.21
  4. Step 4: Simplify right side
    35.49x = 1,136.83
  5. Step 5: Solve for x
    x = 1,136.83/35.49
  6. Step 6: Final answer
    x = 32.03

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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.