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Finding the Fourth Proportional to 8,831.52, 13,217.04 and 8,468.64

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Solution

The fourth proportional to 8,831.52, 13,217.04 and 8,468.64 is: 12,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.52 : 13,217.04 = 8,468.64 : x
  2. Step 2: Convert to fraction form
    8,831.52/13,217.04 = 8,468.64/x
  3. Step 3: Cross multiply
    8,831.52x = 13,217.04 × 8,468.64
  4. Step 4: Simplify right side
    8,831.52x = 111,930,353.63
  5. Step 5: Solve for x
    x = 111,930,353.63/8,831.52
  6. Step 6: Final answer
    x = 12,673.96

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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.