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Finding the Fourth Proportional to 3,867.72, 5,798.46 and 1,674.90

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Solution

The fourth proportional to 3,867.72, 5,798.46 and 1,674.90 is: 2,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.72 : 5,798.46 = 1,674.90 : x
  2. Step 2: Convert to fraction form
    3,867.72/5,798.46 = 1,674.90/x
  3. Step 3: Cross multiply
    3,867.72x = 5,798.46 × 1,674.90
  4. Step 4: Simplify right side
    3,867.72x = 9,711,840.65
  5. Step 5: Solve for x
    x = 9,711,840.65/3,867.72
  6. Step 6: Final answer
    x = 2,511.00

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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.