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Finding the Fourth Proportional to 8,813.55, 12,162.96 and 4,834.94

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Solution

The fourth proportional to 8,813.55, 12,162.96 and 4,834.94 is: 6,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.55 : 12,162.96 = 4,834.94 : x
  2. Step 2: Convert to fraction form
    8,813.55/12,162.96 = 4,834.94/x
  3. Step 3: Cross multiply
    8,813.55x = 12,162.96 × 4,834.94
  4. Step 4: Simplify right side
    8,813.55x = 58,807,181.82
  5. Step 5: Solve for x
    x = 58,807,181.82/8,813.55
  6. Step 6: Final answer
    x = 6,672.36

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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.