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Finding the Fourth Proportional to 8,859.10, 13,276.22 and 4,912.18

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Solution

The fourth proportional to 8,859.10, 13,276.22 and 4,912.18 is: 7,361.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.10 : 13,276.22 = 4,912.18 : x
  2. Step 2: Convert to fraction form
    8,859.10/13,276.22 = 4,912.18/x
  3. Step 3: Cross multiply
    8,859.10x = 13,276.22 × 4,912.18
  4. Step 4: Simplify right side
    8,859.10x = 65,215,182.36
  5. Step 5: Solve for x
    x = 65,215,182.36/8,859.10
  6. Step 6: Final answer
    x = 7,361.38

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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.