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Finding the Fourth Proportional to 23,184.80, 34,738.80 and 19,728.80

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Solution

The fourth proportional to 23,184.80, 34,738.80 and 19,728.80 is: 29,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,184.80 : 34,738.80 = 19,728.80 : x
  2. Step 2: Convert to fraction form
    23,184.80/34,738.80 = 19,728.80/x
  3. Step 3: Cross multiply
    23,184.80x = 34,738.80 × 19,728.80
  4. Step 4: Simplify right side
    23,184.80x = 685,354,837.44
  5. Step 5: Solve for x
    x = 685,354,837.44/23,184.80
  6. Step 6: Final answer
    x = 29,560.52

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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.