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Finding the Fourth Proportional to 26,464.50, 39,697.05 and 8,694.90

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Solution

The fourth proportional to 26,464.50, 39,697.05 and 8,694.90 is: 13,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,464.50 : 39,697.05 = 8,694.90 : x
  2. Step 2: Convert to fraction form
    26,464.50/39,697.05 = 8,694.90/x
  3. Step 3: Cross multiply
    26,464.50x = 39,697.05 × 8,694.90
  4. Step 4: Simplify right side
    26,464.50x = 345,161,880.05
  5. Step 5: Solve for x
    x = 345,161,880.05/26,464.50
  6. Step 6: Final answer
    x = 13,042.45

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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.