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Finding the Fourth Proportional to 10,363.20, 15,522.12 and 8,599.20

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Solution

The fourth proportional to 10,363.20, 15,522.12 and 8,599.20 is: 12,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.20 : 15,522.12 = 8,599.20 : x
  2. Step 2: Convert to fraction form
    10,363.20/15,522.12 = 8,599.20/x
  3. Step 3: Cross multiply
    10,363.20x = 15,522.12 × 8,599.20
  4. Step 4: Simplify right side
    10,363.20x = 133,477,814.30
  5. Step 5: Solve for x
    x = 133,477,814.30/10,363.20
  6. Step 6: Final answer
    x = 12,879.98

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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.