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Finding the Fourth Proportional to 8,240.32, 12,360.48 and 2,694.24

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Solution

The fourth proportional to 8,240.32, 12,360.48 and 2,694.24 is: 4,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.32 : 12,360.48 = 2,694.24 : x
  2. Step 2: Convert to fraction form
    8,240.32/12,360.48 = 2,694.24/x
  3. Step 3: Cross multiply
    8,240.32x = 12,360.48 × 2,694.24
  4. Step 4: Simplify right side
    8,240.32x = 33,302,099.64
  5. Step 5: Solve for x
    x = 33,302,099.64/8,240.32
  6. Step 6: Final answer
    x = 4,041.36

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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.