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Finding the Fourth Proportional to 35.25, 48.61 and 22.98

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Solution

The fourth proportional to 35.25, 48.61 and 22.98 is: 31.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.25 : 48.61 = 22.98 : x
  2. Step 2: Convert to fraction form
    35.25/48.61 = 22.98/x
  3. Step 3: Cross multiply
    35.25x = 48.61 × 22.98
  4. Step 4: Simplify right side
    35.25x = 1,117.06
  5. Step 5: Solve for x
    x = 1,117.06/35.25
  6. Step 6: Final answer
    x = 31.69

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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.