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Finding the Fourth Proportional to 71,578.50, 107,334.42 and 26,568.54

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Solution

The fourth proportional to 71,578.50, 107,334.42 and 26,568.54 is: 39,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,578.50 : 107,334.42 = 26,568.54 : x
  2. Step 2: Convert to fraction form
    71,578.50/107,334.42 = 26,568.54/x
  3. Step 3: Cross multiply
    71,578.50x = 107,334.42 × 26,568.54
  4. Step 4: Simplify right side
    71,578.50x = 2,851,718,831.15
  5. Step 5: Solve for x
    x = 2,851,718,831.15/71,578.50
  6. Step 6: Final answer
    x = 39,840.44

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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.