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Finding the Fourth Proportional to 45.28, 62.46 and 33

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Solution

The fourth proportional to 45.28, 62.46 and 33 is: 45.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.28 : 62.46 = 33 : x
  2. Step 2: Convert to fraction form
    45.28/62.46 = 33/x
  3. Step 3: Cross multiply
    45.28x = 62.46 × 33
  4. Step 4: Simplify right side
    45.28x = 2,061.18
  5. Step 5: Solve for x
    x = 2,061.18/45.28
  6. Step 6: Final answer
    x = 45.52

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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.