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Finding the Fourth Proportional to 27,220.25, 40,831.79 and 7,498.37

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Solution

The fourth proportional to 27,220.25, 40,831.79 and 7,498.37 is: 11,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.25 : 40,831.79 = 7,498.37 : x
  2. Step 2: Convert to fraction form
    27,220.25/40,831.79 = 7,498.37/x
  3. Step 3: Cross multiply
    27,220.25x = 40,831.79 × 7,498.37
  4. Step 4: Simplify right side
    27,220.25x = 306,171,627.53
  5. Step 5: Solve for x
    x = 306,171,627.53/27,220.25
  6. Step 6: Final answer
    x = 11,247.94

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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.