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Finding the Fourth Proportional to 2,466.48, 3,700.11 and 985.70

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Solution

The fourth proportional to 2,466.48, 3,700.11 and 985.70 is: 1,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,466.48 : 3,700.11 = 985.70 : x
  2. Step 2: Convert to fraction form
    2,466.48/3,700.11 = 985.70/x
  3. Step 3: Cross multiply
    2,466.48x = 3,700.11 × 985.70
  4. Step 4: Simplify right side
    2,466.48x = 3,647,211.37
  5. Step 5: Solve for x
    x = 3,647,211.37/2,466.48
  6. Step 6: Final answer
    x = 1,478.71

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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.