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Finding the Fourth Proportional to 8,589.01, 12,857.58 and 7,767.67

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Solution

The fourth proportional to 8,589.01, 12,857.58 and 7,767.67 is: 11,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.01 : 12,857.58 = 7,767.67 : x
  2. Step 2: Convert to fraction form
    8,589.01/12,857.58 = 7,767.67/x
  3. Step 3: Cross multiply
    8,589.01x = 12,857.58 × 7,767.67
  4. Step 4: Simplify right side
    8,589.01x = 99,873,438.44
  5. Step 5: Solve for x
    x = 99,873,438.44/8,589.01
  6. Step 6: Final answer
    x = 11,628.05

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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.