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Finding the Fourth Proportional to 13,807.94, 20,694.63 and 10,874.66

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Solution

The fourth proportional to 13,807.94, 20,694.63 and 10,874.66 is: 16,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.94 : 20,694.63 = 10,874.66 : x
  2. Step 2: Convert to fraction form
    13,807.94/20,694.63 = 10,874.66/x
  3. Step 3: Cross multiply
    13,807.94x = 20,694.63 × 10,874.66
  4. Step 4: Simplify right side
    13,807.94x = 225,047,065.08
  5. Step 5: Solve for x
    x = 225,047,065.08/13,807.94
  6. Step 6: Final answer
    x = 16,298.38

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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.