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Finding the Fourth Proportional to 6,609.39, 9,113.83 and 5,018.95

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Solution

The fourth proportional to 6,609.39, 9,113.83 and 5,018.95 is: 6,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.39 : 9,113.83 = 5,018.95 : x
  2. Step 2: Convert to fraction form
    6,609.39/9,113.83 = 5,018.95/x
  3. Step 3: Cross multiply
    6,609.39x = 9,113.83 × 5,018.95
  4. Step 4: Simplify right side
    6,609.39x = 45,741,855.92
  5. Step 5: Solve for x
    x = 45,741,855.92/6,609.39
  6. Step 6: Final answer
    x = 6,920.74

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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.