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Finding the Fourth Proportional to 26,260.86, 39,391.22 and 7,792.86

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Solution

The fourth proportional to 26,260.86, 39,391.22 and 7,792.86 is: 11,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,260.86 : 39,391.22 = 7,792.86 : x
  2. Step 2: Convert to fraction form
    26,260.86/39,391.22 = 7,792.86/x
  3. Step 3: Cross multiply
    26,260.86x = 39,391.22 × 7,792.86
  4. Step 4: Simplify right side
    26,260.86x = 306,970,262.69
  5. Step 5: Solve for x
    x = 306,970,262.69/26,260.86
  6. Step 6: Final answer
    x = 11,689.27

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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.