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Finding the Fourth Proportional to 6,898.86, 9,520.26 and 3,755.10

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Solution

The fourth proportional to 6,898.86, 9,520.26 and 3,755.10 is: 5,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.86 : 9,520.26 = 3,755.10 : x
  2. Step 2: Convert to fraction form
    6,898.86/9,520.26 = 3,755.10/x
  3. Step 3: Cross multiply
    6,898.86x = 9,520.26 × 3,755.10
  4. Step 4: Simplify right side
    6,898.86x = 35,749,528.33
  5. Step 5: Solve for x
    x = 35,749,528.33/6,898.86
  6. Step 6: Final answer
    x = 5,181.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.