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Finding the Fourth Proportional to 8,374.87, 12,571.53 and 4,868.83

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Solution

The fourth proportional to 8,374.87, 12,571.53 and 4,868.83 is: 7,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.87 : 12,571.53 = 4,868.83 : x
  2. Step 2: Convert to fraction form
    8,374.87/12,571.53 = 4,868.83/x
  3. Step 3: Cross multiply
    8,374.87x = 12,571.53 × 4,868.83
  4. Step 4: Simplify right side
    8,374.87x = 61,208,555.21
  5. Step 5: Solve for x
    x = 61,208,555.21/8,374.87
  6. Step 6: Final answer
    x = 7,308.60

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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.