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Finding the Fourth Proportional to 74.00, 110.89 and 46.48

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Solution

The fourth proportional to 74.00, 110.89 and 46.48 is: 69.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.00 : 110.89 = 46.48 : x
  2. Step 2: Convert to fraction form
    74.00/110.89 = 46.48/x
  3. Step 3: Cross multiply
    74.00x = 110.89 × 46.48
  4. Step 4: Simplify right side
    74.00x = 5,153.77
  5. Step 5: Solve for x
    x = 5,153.77/74.00
  6. Step 6: Final answer
    x = 69.65

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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.