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Finding the Fourth Proportional to 8,609.52, 11,879.20 and 5,073.06

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Solution

The fourth proportional to 8,609.52, 11,879.20 and 5,073.06 is: 6,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.52 : 11,879.20 = 5,073.06 : x
  2. Step 2: Convert to fraction form
    8,609.52/11,879.20 = 5,073.06/x
  3. Step 3: Cross multiply
    8,609.52x = 11,879.20 × 5,073.06
  4. Step 4: Simplify right side
    8,609.52x = 60,263,894.35
  5. Step 5: Solve for x
    x = 60,263,894.35/8,609.52
  6. Step 6: Final answer
    x = 6,999.68

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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.