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Finding the Fourth Proportional to 17,625.78, 26,439.48 and 9,828.72

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Solution

The fourth proportional to 17,625.78, 26,439.48 and 9,828.72 is: 14,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,625.78 : 26,439.48 = 9,828.72 : x
  2. Step 2: Convert to fraction form
    17,625.78/26,439.48 = 9,828.72/x
  3. Step 3: Cross multiply
    17,625.78x = 26,439.48 × 9,828.72
  4. Step 4: Simplify right side
    17,625.78x = 259,866,245.87
  5. Step 5: Solve for x
    x = 259,866,245.87/17,625.78
  6. Step 6: Final answer
    x = 14,743.53

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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.