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Finding the Fourth Proportional to 55,831.60, 83,601.60 and 36,002.80

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Solution

The fourth proportional to 55,831.60, 83,601.60 and 36,002.80 is: 53,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.60 : 83,601.60 = 36,002.80 : x
  2. Step 2: Convert to fraction form
    55,831.60/83,601.60 = 36,002.80/x
  3. Step 3: Cross multiply
    55,831.60x = 83,601.60 × 36,002.80
  4. Step 4: Simplify right side
    55,831.60x = 3,009,891,684.48
  5. Step 5: Solve for x
    x = 3,009,891,684.48/55,831.60
  6. Step 6: Final answer
    x = 53,910.18

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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.