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Finding the Fourth Proportional to 35.84, 53.72 and 14.44

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Solution

The fourth proportional to 35.84, 53.72 and 14.44 is: 21.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.84 : 53.72 = 14.44 : x
  2. Step 2: Convert to fraction form
    35.84/53.72 = 14.44/x
  3. Step 3: Cross multiply
    35.84x = 53.72 × 14.44
  4. Step 4: Simplify right side
    35.84x = 775.72
  5. Step 5: Solve for x
    x = 775.72/35.84
  6. Step 6: Final answer
    x = 21.64

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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.