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Finding the Fourth Proportional to 5,619.36, 8,429.03 and 5,273.09

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Solution

The fourth proportional to 5,619.36, 8,429.03 and 5,273.09 is: 7,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.36 : 8,429.03 = 5,273.09 : x
  2. Step 2: Convert to fraction form
    5,619.36/8,429.03 = 5,273.09/x
  3. Step 3: Cross multiply
    5,619.36x = 8,429.03 × 5,273.09
  4. Step 4: Simplify right side
    5,619.36x = 44,447,004.84
  5. Step 5: Solve for x
    x = 44,447,004.84/5,619.36
  6. Step 6: Final answer
    x = 7,909.62

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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.