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Finding the Fourth Proportional to 5,898.22, 8,139.22 and 3,245.20

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Solution

The fourth proportional to 5,898.22, 8,139.22 and 3,245.20 is: 4,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898.22 : 8,139.22 = 3,245.20 : x
  2. Step 2: Convert to fraction form
    5,898.22/8,139.22 = 3,245.20/x
  3. Step 3: Cross multiply
    5,898.22x = 8,139.22 × 3,245.20
  4. Step 4: Simplify right side
    5,898.22x = 26,413,396.74
  5. Step 5: Solve for x
    x = 26,413,396.74/5,898.22
  6. Step 6: Final answer
    x = 4,478.20

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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.