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Finding the Fourth Proportional to 8,859.63, 13,276.91 and 4,912.62

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Solution

The fourth proportional to 8,859.63, 13,276.91 and 4,912.62 is: 7,361.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.63 : 13,276.91 = 4,912.62 : x
  2. Step 2: Convert to fraction form
    8,859.63/13,276.91 = 4,912.62/x
  3. Step 3: Cross multiply
    8,859.63x = 13,276.91 × 4,912.62
  4. Step 4: Simplify right side
    8,859.63x = 65,224,488.12
  5. Step 5: Solve for x
    x = 65,224,488.12/8,859.63
  6. Step 6: Final answer
    x = 7,361.99

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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.