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Finding the Fourth Proportional to 15,178.56, 22,738.56 and 8,584.56

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Solution

The fourth proportional to 15,178.56, 22,738.56 and 8,584.56 is: 12,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.56 : 22,738.56 = 8,584.56 : x
  2. Step 2: Convert to fraction form
    15,178.56/22,738.56 = 8,584.56/x
  3. Step 3: Cross multiply
    15,178.56x = 22,738.56 × 8,584.56
  4. Step 4: Simplify right side
    15,178.56x = 195,200,532.63
  5. Step 5: Solve for x
    x = 195,200,532.63/15,178.56
  6. Step 6: Final answer
    x = 12,860.28

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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.