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Finding the Fourth Proportional to 35.64, 48.96 and 33.48

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Solution

The fourth proportional to 35.64, 48.96 and 33.48 is: 45.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.64 : 48.96 = 33.48 : x
  2. Step 2: Convert to fraction form
    35.64/48.96 = 33.48/x
  3. Step 3: Cross multiply
    35.64x = 48.96 × 33.48
  4. Step 4: Simplify right side
    35.64x = 1,639.18
  5. Step 5: Solve for x
    x = 1,639.18/35.64
  6. Step 6: Final answer
    x = 45.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.