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Finding the Fourth Proportional to 2,508.50, 3,760.05 and 1,119.93

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Solution

The fourth proportional to 2,508.50, 3,760.05 and 1,119.93 is: 1,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.50 : 3,760.05 = 1,119.93 : x
  2. Step 2: Convert to fraction form
    2,508.50/3,760.05 = 1,119.93/x
  3. Step 3: Cross multiply
    2,508.50x = 3,760.05 × 1,119.93
  4. Step 4: Simplify right side
    2,508.50x = 4,210,982.90
  5. Step 5: Solve for x
    x = 4,210,982.90/2,508.50
  6. Step 6: Final answer
    x = 1,678.68

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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.