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Finding the Fourth Proportional to 17,831.55, 26,751.78 and 5,351.81

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Solution

The fourth proportional to 17,831.55, 26,751.78 and 5,351.81 is: 8,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,831.55 : 26,751.78 = 5,351.81 : x
  2. Step 2: Convert to fraction form
    17,831.55/26,751.78 = 5,351.81/x
  3. Step 3: Cross multiply
    17,831.55x = 26,751.78 × 5,351.81
  4. Step 4: Simplify right side
    17,831.55x = 143,170,309.96
  5. Step 5: Solve for x
    x = 143,170,309.96/17,831.55
  6. Step 6: Final answer
    x = 8,029.04

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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.