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Finding the Fourth Proportional to 8,618.94, 11,898.67 and 5,801.13

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Solution

The fourth proportional to 8,618.94, 11,898.67 and 5,801.13 is: 8,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.94 : 11,898.67 = 5,801.13 : x
  2. Step 2: Convert to fraction form
    8,618.94/11,898.67 = 5,801.13/x
  3. Step 3: Cross multiply
    8,618.94x = 11,898.67 × 5,801.13
  4. Step 4: Simplify right side
    8,618.94x = 69,025,731.50
  5. Step 5: Solve for x
    x = 69,025,731.50/8,618.94
  6. Step 6: Final answer
    x = 8,008.61

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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.