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Finding the Fourth Proportional to 16,243.83, 22,416.48 and 8,791.83

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Solution

The fourth proportional to 16,243.83, 22,416.48 and 8,791.83 is: 12,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,243.83 : 22,416.48 = 8,791.83 : x
  2. Step 2: Convert to fraction form
    16,243.83/22,416.48 = 8,791.83/x
  3. Step 3: Cross multiply
    16,243.83x = 22,416.48 × 8,791.83
  4. Step 4: Simplify right side
    16,243.83x = 197,081,881.36
  5. Step 5: Solve for x
    x = 197,081,881.36/16,243.83
  6. Step 6: Final answer
    x = 12,132.72

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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.