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Finding the Fourth Proportional to 48.56, 66.93 and 33.01

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Solution

The fourth proportional to 48.56, 66.93 and 33.01 is: 45.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.56 : 66.93 = 33.01 : x
  2. Step 2: Convert to fraction form
    48.56/66.93 = 33.01/x
  3. Step 3: Cross multiply
    48.56x = 66.93 × 33.01
  4. Step 4: Simplify right side
    48.56x = 2,209.13
  5. Step 5: Solve for x
    x = 2,209.13/48.56
  6. Step 6: Final answer
    x = 45.50

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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.