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Finding the Fourth Proportional to 8,751.51, 13,122.95 and 3,819.02

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Solution

The fourth proportional to 8,751.51, 13,122.95 and 3,819.02 is: 5,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.51 : 13,122.95 = 3,819.02 : x
  2. Step 2: Convert to fraction form
    8,751.51/13,122.95 = 3,819.02/x
  3. Step 3: Cross multiply
    8,751.51x = 13,122.95 × 3,819.02
  4. Step 4: Simplify right side
    8,751.51x = 50,116,723.80
  5. Step 5: Solve for x
    x = 50,116,723.80/8,751.51
  6. Step 6: Final answer
    x = 5,726.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.