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Finding the Fourth Proportional to 2,663.99, 3,996.02 and 1,020.62

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Solution

The fourth proportional to 2,663.99, 3,996.02 and 1,020.62 is: 1,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.99 : 3,996.02 = 1,020.62 : x
  2. Step 2: Convert to fraction form
    2,663.99/3,996.02 = 1,020.62/x
  3. Step 3: Cross multiply
    2,663.99x = 3,996.02 × 1,020.62
  4. Step 4: Simplify right side
    2,663.99x = 4,078,420.48
  5. Step 5: Solve for x
    x = 4,078,420.48/2,663.99
  6. Step 6: Final answer
    x = 1,530.94

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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.