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Finding the Fourth Proportional to 15,169.71, 20,933.85 and 8,797.44

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Solution

The fourth proportional to 15,169.71, 20,933.85 and 8,797.44 is: 12,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.71 : 20,933.85 = 8,797.44 : x
  2. Step 2: Convert to fraction form
    15,169.71/20,933.85 = 8,797.44/x
  3. Step 3: Cross multiply
    15,169.71x = 20,933.85 × 8,797.44
  4. Step 4: Simplify right side
    15,169.71x = 184,164,289.34
  5. Step 5: Solve for x
    x = 184,164,289.34/15,169.71
  6. Step 6: Final answer
    x = 12,140.26

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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.