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Finding the Fourth Proportional to 29.58, 44.45 and 21.99

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Solution

The fourth proportional to 29.58, 44.45 and 21.99 is: 33.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.58 : 44.45 = 21.99 : x
  2. Step 2: Convert to fraction form
    29.58/44.45 = 21.99/x
  3. Step 3: Cross multiply
    29.58x = 44.45 × 21.99
  4. Step 4: Simplify right side
    29.58x = 977.35
  5. Step 5: Solve for x
    x = 977.35/29.58
  6. Step 6: Final answer
    x = 33.04

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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.