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Finding the Fourth Proportional to 15,046.26, 20,764.02 and 8,758.50

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Solution

The fourth proportional to 15,046.26, 20,764.02 and 8,758.50 is: 12,086.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.26 : 20,764.02 = 8,758.50 : x
  2. Step 2: Convert to fraction form
    15,046.26/20,764.02 = 8,758.50/x
  3. Step 3: Cross multiply
    15,046.26x = 20,764.02 × 8,758.50
  4. Step 4: Simplify right side
    15,046.26x = 181,861,669.17
  5. Step 5: Solve for x
    x = 181,861,669.17/15,046.26
  6. Step 6: Final answer
    x = 12,086.84

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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.