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Finding the Fourth Proportional to 5,576.78, 8,365.50 and 4,012.50

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Solution

The fourth proportional to 5,576.78, 8,365.50 and 4,012.50 is: 6,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,576.78 : 8,365.50 = 4,012.50 : x
  2. Step 2: Convert to fraction form
    5,576.78/8,365.50 = 4,012.50/x
  3. Step 3: Cross multiply
    5,576.78x = 8,365.50 × 4,012.50
  4. Step 4: Simplify right side
    5,576.78x = 33,566,568.75
  5. Step 5: Solve for x
    x = 33,566,568.75/5,576.78
  6. Step 6: Final answer
    x = 6,018.99

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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.