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Finding the Fourth Proportional to 8,785.86, 13,180.95 and 6,193.86

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Solution

The fourth proportional to 8,785.86, 13,180.95 and 6,193.86 is: 9,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.86 : 13,180.95 = 6,193.86 : x
  2. Step 2: Convert to fraction form
    8,785.86/13,180.95 = 6,193.86/x
  3. Step 3: Cross multiply
    8,785.86x = 13,180.95 × 6,193.86
  4. Step 4: Simplify right side
    8,785.86x = 81,640,958.97
  5. Step 5: Solve for x
    x = 81,640,958.97/8,785.86
  6. Step 6: Final answer
    x = 9,292.31

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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.