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Finding the Fourth Proportional to 10,671.76, 16,007.64 and 8,843.92

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Solution

The fourth proportional to 10,671.76, 16,007.64 and 8,843.92 is: 13,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,671.76 : 16,007.64 = 8,843.92 : x
  2. Step 2: Convert to fraction form
    10,671.76/16,007.64 = 8,843.92/x
  3. Step 3: Cross multiply
    10,671.76x = 16,007.64 × 8,843.92
  4. Step 4: Simplify right side
    10,671.76x = 141,570,287.55
  5. Step 5: Solve for x
    x = 141,570,287.55/10,671.76
  6. Step 6: Final answer
    x = 13,265.88

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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.