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Finding the Fourth Proportional to 49.59, 74.42 and 29.32

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Solution

The fourth proportional to 49.59, 74.42 and 29.32 is: 44.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.59 : 74.42 = 29.32 : x
  2. Step 2: Convert to fraction form
    49.59/74.42 = 29.32/x
  3. Step 3: Cross multiply
    49.59x = 74.42 × 29.32
  4. Step 4: Simplify right side
    49.59x = 2,181.99
  5. Step 5: Solve for x
    x = 2,181.99/49.59
  6. Step 6: Final answer
    x = 44.00

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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.