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Finding the Fourth Proportional to 8,813.87, 12,163.02 and 5,036.99

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Solution

The fourth proportional to 8,813.87, 12,163.02 and 5,036.99 is: 6,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.87 : 12,163.02 = 5,036.99 : x
  2. Step 2: Convert to fraction form
    8,813.87/12,163.02 = 5,036.99/x
  3. Step 3: Cross multiply
    8,813.87x = 12,163.02 × 5,036.99
  4. Step 4: Simplify right side
    8,813.87x = 61,265,053.11
  5. Step 5: Solve for x
    x = 61,265,053.11/8,813.87
  6. Step 6: Final answer
    x = 6,950.98

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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.