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Finding the Fourth Proportional to 8,589.57, 11,855.93 and 5,053.92

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Solution

The fourth proportional to 8,589.57, 11,855.93 and 5,053.92 is: 6,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.57 : 11,855.93 = 5,053.92 : x
  2. Step 2: Convert to fraction form
    8,589.57/11,855.93 = 5,053.92/x
  3. Step 3: Cross multiply
    8,589.57x = 11,855.93 × 5,053.92
  4. Step 4: Simplify right side
    8,589.57x = 59,918,921.75
  5. Step 5: Solve for x
    x = 59,918,921.75/8,589.57
  6. Step 6: Final answer
    x = 6,975.78

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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.