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Finding the Fourth Proportional to 46.99, 70.47 and 16.56

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Solution

The fourth proportional to 46.99, 70.47 and 16.56 is: 24.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.99 : 70.47 = 16.56 : x
  2. Step 2: Convert to fraction form
    46.99/70.47 = 16.56/x
  3. Step 3: Cross multiply
    46.99x = 70.47 × 16.56
  4. Step 4: Simplify right side
    46.99x = 1,166.98
  5. Step 5: Solve for x
    x = 1,166.98/46.99
  6. Step 6: Final answer
    x = 24.83

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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.