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Finding the Fourth Proportional to 26,893.69, 40,340.63 and 8,425.69

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Solution

The fourth proportional to 26,893.69, 40,340.63 and 8,425.69 is: 12,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,893.69 : 40,340.63 = 8,425.69 : x
  2. Step 2: Convert to fraction form
    26,893.69/40,340.63 = 8,425.69/x
  3. Step 3: Cross multiply
    26,893.69x = 40,340.63 × 8,425.69
  4. Step 4: Simplify right side
    26,893.69x = 339,897,563.00
  5. Step 5: Solve for x
    x = 339,897,563.00/26,893.69
  6. Step 6: Final answer
    x = 12,638.56

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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.