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Finding the Fourth Proportional to 13,363.80, 20,040.30 and 4,594.20

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Solution

The fourth proportional to 13,363.80, 20,040.30 and 4,594.20 is: 6,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.80 : 20,040.30 = 4,594.20 : x
  2. Step 2: Convert to fraction form
    13,363.80/20,040.30 = 4,594.20/x
  3. Step 3: Cross multiply
    13,363.80x = 20,040.30 × 4,594.20
  4. Step 4: Simplify right side
    13,363.80x = 92,069,146.26
  5. Step 5: Solve for x
    x = 92,069,146.26/13,363.80
  6. Step 6: Final answer
    x = 6,889.44

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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.