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Finding the Fourth Proportional to 8,614.68, 11,889.28 and 4,837.85

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Solution

The fourth proportional to 8,614.68, 11,889.28 and 4,837.85 is: 6,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.68 : 11,889.28 = 4,837.85 : x
  2. Step 2: Convert to fraction form
    8,614.68/11,889.28 = 4,837.85/x
  3. Step 3: Cross multiply
    8,614.68x = 11,889.28 × 4,837.85
  4. Step 4: Simplify right side
    8,614.68x = 57,518,544.43
  5. Step 5: Solve for x
    x = 57,518,544.43/8,614.68
  6. Step 6: Final answer
    x = 6,676.81

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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.