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Finding the Fourth Proportional to 19,755.56, 29,644.98 and 7,284.36

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Solution

The fourth proportional to 19,755.56, 29,644.98 and 7,284.36 is: 10,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755.56 : 29,644.98 = 7,284.36 : x
  2. Step 2: Convert to fraction form
    19,755.56/29,644.98 = 7,284.36/x
  3. Step 3: Cross multiply
    19,755.56x = 29,644.98 × 7,284.36
  4. Step 4: Simplify right side
    19,755.56x = 215,944,706.51
  5. Step 5: Solve for x
    x = 215,944,706.51/19,755.56
  6. Step 6: Final answer
    x = 10,930.83

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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.