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Finding the Fourth Proportional to 49.35, 74.06 and 22.32

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Solution

The fourth proportional to 49.35, 74.06 and 22.32 is: 33.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.35 : 74.06 = 22.32 : x
  2. Step 2: Convert to fraction form
    49.35/74.06 = 22.32/x
  3. Step 3: Cross multiply
    49.35x = 74.06 × 22.32
  4. Step 4: Simplify right side
    49.35x = 1,653.02
  5. Step 5: Solve for x
    x = 1,653.02/49.35
  6. Step 6: Final answer
    x = 33.50

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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.