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Finding the Fourth Proportional to 8,446.99, 12,666.18 and 2,822.63

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Solution

The fourth proportional to 8,446.99, 12,666.18 and 2,822.63 is: 4,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.99 : 12,666.18 = 2,822.63 : x
  2. Step 2: Convert to fraction form
    8,446.99/12,666.18 = 2,822.63/x
  3. Step 3: Cross multiply
    8,446.99x = 12,666.18 × 2,822.63
  4. Step 4: Simplify right side
    8,446.99x = 35,751,939.65
  5. Step 5: Solve for x
    x = 35,751,939.65/8,446.99
  6. Step 6: Final answer
    x = 4,232.51

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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.