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Finding the Fourth Proportional to 22,486.74, 33,723.95 and 8,445.68

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Solution

The fourth proportional to 22,486.74, 33,723.95 and 8,445.68 is: 12,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.74 : 33,723.95 = 8,445.68 : x
  2. Step 2: Convert to fraction form
    22,486.74/33,723.95 = 8,445.68/x
  3. Step 3: Cross multiply
    22,486.74x = 33,723.95 × 8,445.68
  4. Step 4: Simplify right side
    22,486.74x = 284,821,690.04
  5. Step 5: Solve for x
    x = 284,821,690.04/22,486.74
  6. Step 6: Final answer
    x = 12,666.21

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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.