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Finding the Fourth Proportional to 12,797.83, 17,655.79 and 8,492.94

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Solution

The fourth proportional to 12,797.83, 17,655.79 and 8,492.94 is: 11,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.83 : 17,655.79 = 8,492.94 : x
  2. Step 2: Convert to fraction form
    12,797.83/17,655.79 = 8,492.94/x
  3. Step 3: Cross multiply
    12,797.83x = 17,655.79 × 8,492.94
  4. Step 4: Simplify right side
    12,797.83x = 149,949,633.36
  5. Step 5: Solve for x
    x = 149,949,633.36/12,797.83
  6. Step 6: Final answer
    x = 11,716.81

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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.