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Finding the Fourth Proportional to 8,813.64, 12,163.08 and 5,037.36

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Solution

The fourth proportional to 8,813.64, 12,163.08 and 5,037.36 is: 6,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.64 : 12,163.08 = 5,037.36 : x
  2. Step 2: Convert to fraction form
    8,813.64/12,163.08 = 5,037.36/x
  3. Step 3: Cross multiply
    8,813.64x = 12,163.08 × 5,037.36
  4. Step 4: Simplify right side
    8,813.64x = 61,269,812.67
  5. Step 5: Solve for x
    x = 61,269,812.67/8,813.64
  6. Step 6: Final answer
    x = 6,951.70

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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.