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Finding the Fourth Proportional to 8,694.68, 11,998.69 and 4,715.83

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Solution

The fourth proportional to 8,694.68, 11,998.69 and 4,715.83 is: 6,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.68 : 11,998.69 = 4,715.83 : x
  2. Step 2: Convert to fraction form
    8,694.68/11,998.69 = 4,715.83/x
  3. Step 3: Cross multiply
    8,694.68x = 11,998.69 × 4,715.83
  4. Step 4: Simplify right side
    8,694.68x = 56,583,740.48
  5. Step 5: Solve for x
    x = 56,583,740.48/8,694.68
  6. Step 6: Final answer
    x = 6,507.86

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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.