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Finding the Fourth Proportional to 8,260.08, 12,387.24 and 3,642

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Solution

The fourth proportional to 8,260.08, 12,387.24 and 3,642 is: 5,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.08 : 12,387.24 = 3,642 : x
  2. Step 2: Convert to fraction form
    8,260.08/12,387.24 = 3,642/x
  3. Step 3: Cross multiply
    8,260.08x = 12,387.24 × 3,642
  4. Step 4: Simplify right side
    8,260.08x = 45,114,328.08
  5. Step 5: Solve for x
    x = 45,114,328.08/8,260.08
  6. Step 6: Final answer
    x = 5,461.73

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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.