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Finding the Fourth Proportional to 26,893.80, 40,331.10 and 9,364.20

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Solution

The fourth proportional to 26,893.80, 40,331.10 and 9,364.20 is: 14,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,893.80 : 40,331.10 = 9,364.20 : x
  2. Step 2: Convert to fraction form
    26,893.80/40,331.10 = 9,364.20/x
  3. Step 3: Cross multiply
    26,893.80x = 40,331.10 × 9,364.20
  4. Step 4: Simplify right side
    26,893.80x = 377,668,486.62
  5. Step 5: Solve for x
    x = 377,668,486.62/26,893.80
  6. Step 6: Final answer
    x = 14,042.96

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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.