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Finding the Fourth Proportional to 8,403.66, 12,605.48 and 3,467.87

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Solution

The fourth proportional to 8,403.66, 12,605.48 and 3,467.87 is: 5,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.66 : 12,605.48 = 3,467.87 : x
  2. Step 2: Convert to fraction form
    8,403.66/12,605.48 = 3,467.87/x
  3. Step 3: Cross multiply
    8,403.66x = 12,605.48 × 3,467.87
  4. Step 4: Simplify right side
    8,403.66x = 43,714,085.56
  5. Step 5: Solve for x
    x = 43,714,085.56/8,403.66
  6. Step 6: Final answer
    x = 5,201.79

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1.5x scale

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.