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Finding the Fourth Proportional to 8,560.52, 12,831.86 and 4,171.94

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Solution

The fourth proportional to 8,560.52, 12,831.86 and 4,171.94 is: 6,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.52 : 12,831.86 = 4,171.94 : x
  2. Step 2: Convert to fraction form
    8,560.52/12,831.86 = 4,171.94/x
  3. Step 3: Cross multiply
    8,560.52x = 12,831.86 × 4,171.94
  4. Step 4: Simplify right side
    8,560.52x = 53,533,750.01
  5. Step 5: Solve for x
    x = 53,533,750.01/8,560.52
  6. Step 6: Final answer
    x = 6,253.56

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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.