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Finding the Fourth Proportional to 8,797.29, 12,134.99 and 5,611.13

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Solution

The fourth proportional to 8,797.29, 12,134.99 and 5,611.13 is: 7,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.29 : 12,134.99 = 5,611.13 : x
  2. Step 2: Convert to fraction form
    8,797.29/12,134.99 = 5,611.13/x
  3. Step 3: Cross multiply
    8,797.29x = 12,134.99 × 5,611.13
  4. Step 4: Simplify right side
    8,797.29x = 68,090,917.71
  5. Step 5: Solve for x
    x = 68,090,917.71/8,797.29
  6. Step 6: Final answer
    x = 7,739.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.