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Finding the Fourth Proportional to 6,847.46, 10,279.69 and 6,815.87

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Solution

The fourth proportional to 6,847.46, 10,279.69 and 6,815.87 is: 10,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,847.46 : 10,279.69 = 6,815.87 : x
  2. Step 2: Convert to fraction form
    6,847.46/10,279.69 = 6,815.87/x
  3. Step 3: Cross multiply
    6,847.46x = 10,279.69 × 6,815.87
  4. Step 4: Simplify right side
    6,847.46x = 70,065,030.68
  5. Step 5: Solve for x
    x = 70,065,030.68/6,847.46
  6. Step 6: Final answer
    x = 10,232.27

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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.