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Finding the Fourth Proportional to 7,867.59, 11,813.01 and 5,251.39

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Solution

The fourth proportional to 7,867.59, 11,813.01 and 5,251.39 is: 7,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.59 : 11,813.01 = 5,251.39 : x
  2. Step 2: Convert to fraction form
    7,867.59/11,813.01 = 5,251.39/x
  3. Step 3: Cross multiply
    7,867.59x = 11,813.01 × 5,251.39
  4. Step 4: Simplify right side
    7,867.59x = 62,034,722.58
  5. Step 5: Solve for x
    x = 62,034,722.58/7,867.59
  6. Step 6: Final answer
    x = 7,884.84

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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.