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Finding the Fourth Proportional to 15,183.17, 20,952.18 and 8,809.44

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Solution

The fourth proportional to 15,183.17, 20,952.18 and 8,809.44 is: 12,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.17 : 20,952.18 = 8,809.44 : x
  2. Step 2: Convert to fraction form
    15,183.17/20,952.18 = 8,809.44/x
  3. Step 3: Cross multiply
    15,183.17x = 20,952.18 × 8,809.44
  4. Step 4: Simplify right side
    15,183.17x = 184,576,972.58
  5. Step 5: Solve for x
    x = 184,576,972.58/15,183.17
  6. Step 6: Final answer
    x = 12,156.69

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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.