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Finding the Fourth Proportional to 17,940.55, 26,900.68 and 8,582.83

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Solution

The fourth proportional to 17,940.55, 26,900.68 and 8,582.83 is: 12,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.55 : 26,900.68 = 8,582.83 : x
  2. Step 2: Convert to fraction form
    17,940.55/26,900.68 = 8,582.83/x
  3. Step 3: Cross multiply
    17,940.55x = 26,900.68 × 8,582.83
  4. Step 4: Simplify right side
    17,940.55x = 230,883,963.32
  5. Step 5: Solve for x
    x = 230,883,963.32/17,940.55
  6. Step 6: Final answer
    x = 12,869.39

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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.