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Finding the Fourth Proportional to 35.22, 53.00 and 29.18

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Solution

The fourth proportional to 35.22, 53.00 and 29.18 is: 43.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.22 : 53.00 = 29.18 : x
  2. Step 2: Convert to fraction form
    35.22/53.00 = 29.18/x
  3. Step 3: Cross multiply
    35.22x = 53.00 × 29.18
  4. Step 4: Simplify right side
    35.22x = 1,546.35
  5. Step 5: Solve for x
    x = 1,546.35/35.22
  6. Step 6: Final answer
    x = 43.91

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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.