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Finding the Fourth Proportional to 8,809.83, 12,154.17 and 5,623.24

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Solution

The fourth proportional to 8,809.83, 12,154.17 and 5,623.24 is: 7,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.83 : 12,154.17 = 5,623.24 : x
  2. Step 2: Convert to fraction form
    8,809.83/12,154.17 = 5,623.24/x
  3. Step 3: Cross multiply
    8,809.83x = 12,154.17 × 5,623.24
  4. Step 4: Simplify right side
    8,809.83x = 68,345,754.14
  5. Step 5: Solve for x
    x = 68,345,754.14/8,809.83
  6. Step 6: Final answer
    x = 7,757.90

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1.5x scale

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.