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Finding the Fourth Proportional to 8,171.52, 11,276.72 and 4,445.52

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Solution

The fourth proportional to 8,171.52, 11,276.72 and 4,445.52 is: 6,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.52 : 11,276.72 = 4,445.52 : x
  2. Step 2: Convert to fraction form
    8,171.52/11,276.72 = 4,445.52/x
  3. Step 3: Cross multiply
    8,171.52x = 11,276.72 × 4,445.52
  4. Step 4: Simplify right side
    8,171.52x = 50,130,884.29
  5. Step 5: Solve for x
    x = 50,130,884.29/8,171.52
  6. Step 6: Final answer
    x = 6,134.83

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1.5x scale

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.