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Finding the Fourth Proportional to 3,676.76, 5,519.19 and 1,487.00

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Solution

The fourth proportional to 3,676.76, 5,519.19 and 1,487.00 is: 2,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.76 : 5,519.19 = 1,487.00 : x
  2. Step 2: Convert to fraction form
    3,676.76/5,519.19 = 1,487.00/x
  3. Step 3: Cross multiply
    3,676.76x = 5,519.19 × 1,487.00
  4. Step 4: Simplify right side
    3,676.76x = 8,207,007.93
  5. Step 5: Solve for x
    x = 8,207,007.93/3,676.76
  6. Step 6: Final answer
    x = 2,232.13

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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.