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Finding the Fourth Proportional to 8,813.64, 12,162.99 and 4,834.53

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Solution

The fourth proportional to 8,813.64, 12,162.99 and 4,834.53 is: 6,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.64 : 12,162.99 = 4,834.53 : x
  2. Step 2: Convert to fraction form
    8,813.64/12,162.99 = 4,834.53/x
  3. Step 3: Cross multiply
    8,813.64x = 12,162.99 × 4,834.53
  4. Step 4: Simplify right side
    8,813.64x = 58,802,340.04
  5. Step 5: Solve for x
    x = 58,802,340.04/8,813.64
  6. Step 6: Final answer
    x = 6,671.74

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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.