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Finding the Fourth Proportional to 17,338.60, 26,007.90 and 11,117.80

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Solution

The fourth proportional to 17,338.60, 26,007.90 and 11,117.80 is: 16,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,338.60 : 26,007.90 = 11,117.80 : x
  2. Step 2: Convert to fraction form
    17,338.60/26,007.90 = 11,117.80/x
  3. Step 3: Cross multiply
    17,338.60x = 26,007.90 × 11,117.80
  4. Step 4: Simplify right side
    17,338.60x = 289,150,630.62
  5. Step 5: Solve for x
    x = 289,150,630.62/17,338.60
  6. Step 6: Final answer
    x = 16,676.70

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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.