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Finding the Fourth Proportional to 46.64, 70.07 and 46.44

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Solution

The fourth proportional to 46.64, 70.07 and 46.44 is: 69.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.64 : 70.07 = 46.44 : x
  2. Step 2: Convert to fraction form
    46.64/70.07 = 46.44/x
  3. Step 3: Cross multiply
    46.64x = 70.07 × 46.44
  4. Step 4: Simplify right side
    46.64x = 3,253.82
  5. Step 5: Solve for x
    x = 3,253.82/46.64
  6. Step 6: Final answer
    x = 69.76

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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.