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Finding the Fourth Proportional to 13,363.98, 20,026.80 and 7,508.28

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Solution

The fourth proportional to 13,363.98, 20,026.80 and 7,508.28 is: 11,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.98 : 20,026.80 = 7,508.28 : x
  2. Step 2: Convert to fraction form
    13,363.98/20,026.80 = 7,508.28/x
  3. Step 3: Cross multiply
    13,363.98x = 20,026.80 × 7,508.28
  4. Step 4: Simplify right side
    13,363.98x = 150,366,821.90
  5. Step 5: Solve for x
    x = 150,366,821.90/13,363.98
  6. Step 6: Final answer
    x = 11,251.65

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1.5x scale

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.