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Finding the Fourth Proportional to 66.55, 99.84 and 32.33

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Solution

The fourth proportional to 66.55, 99.84 and 32.33 is: 48.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.55 : 99.84 = 32.33 : x
  2. Step 2: Convert to fraction form
    66.55/99.84 = 32.33/x
  3. Step 3: Cross multiply
    66.55x = 99.84 × 32.33
  4. Step 4: Simplify right side
    66.55x = 3,227.83
  5. Step 5: Solve for x
    x = 3,227.83/66.55
  6. Step 6: Final answer
    x = 48.50

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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.