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Finding the Fourth Proportional to 8,295.55, 12,443.36 and 6,831.68

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Solution

The fourth proportional to 8,295.55, 12,443.36 and 6,831.68 is: 10,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,295.55 : 12,443.36 = 6,831.68 : x
  2. Step 2: Convert to fraction form
    8,295.55/12,443.36 = 6,831.68/x
  3. Step 3: Cross multiply
    8,295.55x = 12,443.36 × 6,831.68
  4. Step 4: Simplify right side
    8,295.55x = 85,008,957.27
  5. Step 5: Solve for x
    x = 85,008,957.27/8,295.55
  6. Step 6: Final answer
    x = 10,247.54

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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.