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Finding the Fourth Proportional to 8,607.25, 11,879.45 and 4,883.41

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Solution

The fourth proportional to 8,607.25, 11,879.45 and 4,883.41 is: 6,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.25 : 11,879.45 = 4,883.41 : x
  2. Step 2: Convert to fraction form
    8,607.25/11,879.45 = 4,883.41/x
  3. Step 3: Cross multiply
    8,607.25x = 11,879.45 × 4,883.41
  4. Step 4: Simplify right side
    8,607.25x = 58,012,224.92
  5. Step 5: Solve for x
    x = 58,012,224.92/8,607.25
  6. Step 6: Final answer
    x = 6,739.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.