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Finding the Fourth Proportional to 65,831.30, 90,846.82 and 35,616.54

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Solution

The fourth proportional to 65,831.30, 90,846.82 and 35,616.54 is: 49,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,831.30 : 90,846.82 = 35,616.54 : x
  2. Step 2: Convert to fraction form
    65,831.30/90,846.82 = 35,616.54/x
  3. Step 3: Cross multiply
    65,831.30x = 90,846.82 × 35,616.54
  4. Step 4: Simplify right side
    65,831.30x = 3,235,649,398.40
  5. Step 5: Solve for x
    x = 3,235,649,398.40/65,831.30
  6. Step 6: Final answer
    x = 49,150.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.