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Finding the Fourth Proportional to 12,503.26, 17,246.36 and 8,019.91

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Solution

The fourth proportional to 12,503.26, 17,246.36 and 8,019.91 is: 11,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.26 : 17,246.36 = 8,019.91 : x
  2. Step 2: Convert to fraction form
    12,503.26/17,246.36 = 8,019.91/x
  3. Step 3: Cross multiply
    12,503.26x = 17,246.36 × 8,019.91
  4. Step 4: Simplify right side
    12,503.26x = 138,314,168.80
  5. Step 5: Solve for x
    x = 138,314,168.80/12,503.26
  6. Step 6: Final answer
    x = 11,062.25

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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.