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Finding the Fourth Proportional to 35.69, 53.44 and 28.01

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Solution

The fourth proportional to 35.69, 53.44 and 28.01 is: 41.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.69 : 53.44 = 28.01 : x
  2. Step 2: Convert to fraction form
    35.69/53.44 = 28.01/x
  3. Step 3: Cross multiply
    35.69x = 53.44 × 28.01
  4. Step 4: Simplify right side
    35.69x = 1,497.08
  5. Step 5: Solve for x
    x = 1,497.08/35.69
  6. Step 6: Final answer
    x = 41.95

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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.