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Finding the Fourth Proportional to 12,163.70, 16,785.93 and 6,574.70

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Solution

The fourth proportional to 12,163.70, 16,785.93 and 6,574.70 is: 9,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.70 : 16,785.93 = 6,574.70 : x
  2. Step 2: Convert to fraction form
    12,163.70/16,785.93 = 6,574.70/x
  3. Step 3: Cross multiply
    12,163.70x = 16,785.93 × 6,574.70
  4. Step 4: Simplify right side
    12,163.70x = 110,362,520.59
  5. Step 5: Solve for x
    x = 110,362,520.59/12,163.70
  6. Step 6: Final answer
    x = 9,073.10

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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.