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Finding the Fourth Proportional to 8,009.75, 11,993.65 and 5,657.03

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Solution

The fourth proportional to 8,009.75, 11,993.65 and 5,657.03 is: 8,470.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.75 : 11,993.65 = 5,657.03 : x
  2. Step 2: Convert to fraction form
    8,009.75/11,993.65 = 5,657.03/x
  3. Step 3: Cross multiply
    8,009.75x = 11,993.65 × 5,657.03
  4. Step 4: Simplify right side
    8,009.75x = 67,848,437.86
  5. Step 5: Solve for x
    x = 67,848,437.86/8,009.75
  6. Step 6: Final answer
    x = 8,470.73

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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.