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Finding the Fourth Proportional to 8,730.96, 12,049.20 and 5,004.96

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Solution

The fourth proportional to 8,730.96, 12,049.20 and 5,004.96 is: 6,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.96 : 12,049.20 = 5,004.96 : x
  2. Step 2: Convert to fraction form
    8,730.96/12,049.20 = 5,004.96/x
  3. Step 3: Cross multiply
    8,730.96x = 12,049.20 × 5,004.96
  4. Step 4: Simplify right side
    8,730.96x = 60,305,764.03
  5. Step 5: Solve for x
    x = 60,305,764.03/8,730.96
  6. Step 6: Final answer
    x = 6,907.12

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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.