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Finding the Fourth Proportional to 8,165.92, 12,244.92 and 4,789.63

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Solution

The fourth proportional to 8,165.92, 12,244.92 and 4,789.63 is: 7,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.92 : 12,244.92 = 4,789.63 : x
  2. Step 2: Convert to fraction form
    8,165.92/12,244.92 = 4,789.63/x
  3. Step 3: Cross multiply
    8,165.92x = 12,244.92 × 4,789.63
  4. Step 4: Simplify right side
    8,165.92x = 58,648,684.06
  5. Step 5: Solve for x
    x = 58,648,684.06/8,165.92
  6. Step 6: Final answer
    x = 7,182.13

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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.