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Finding the Fourth Proportional to 44.84, 61.80 and 31.92

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Solution

The fourth proportional to 44.84, 61.80 and 31.92 is: 43.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.84 : 61.80 = 31.92 : x
  2. Step 2: Convert to fraction form
    44.84/61.80 = 31.92/x
  3. Step 3: Cross multiply
    44.84x = 61.80 × 31.92
  4. Step 4: Simplify right side
    44.84x = 1,972.66
  5. Step 5: Solve for x
    x = 1,972.66/44.84
  6. Step 6: Final answer
    x = 43.99

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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.