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Finding the Fourth Proportional to 49.32, 74.00 and 23.64

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Solution

The fourth proportional to 49.32, 74.00 and 23.64 is: 35.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.32 : 74.00 = 23.64 : x
  2. Step 2: Convert to fraction form
    49.32/74.00 = 23.64/x
  3. Step 3: Cross multiply
    49.32x = 74.00 × 23.64
  4. Step 4: Simplify right side
    49.32x = 1,749.60
  5. Step 5: Solve for x
    x = 1,749.60/49.32
  6. Step 6: Final answer
    x = 35.47

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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.