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Finding the Fourth Proportional to 8,358.86, 12,540.38 and 5,898.48

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Solution

The fourth proportional to 8,358.86, 12,540.38 and 5,898.48 is: 8,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.86 : 12,540.38 = 5,898.48 : x
  2. Step 2: Convert to fraction form
    8,358.86/12,540.38 = 5,898.48/x
  3. Step 3: Cross multiply
    8,358.86x = 12,540.38 × 5,898.48
  4. Step 4: Simplify right side
    8,358.86x = 73,969,180.62
  5. Step 5: Solve for x
    x = 73,969,180.62/8,358.86
  6. Step 6: Final answer
    x = 8,849.19

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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.