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Finding the Fourth Proportional to 29,194.70, 43,755.60 and 21,394.40

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Solution

The fourth proportional to 29,194.70, 43,755.60 and 21,394.40 is: 32,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,194.70 : 43,755.60 = 21,394.40 : x
  2. Step 2: Convert to fraction form
    29,194.70/43,755.60 = 21,394.40/x
  3. Step 3: Cross multiply
    29,194.70x = 43,755.60 × 21,394.40
  4. Step 4: Simplify right side
    29,194.70x = 936,124,808.64
  5. Step 5: Solve for x
    x = 936,124,808.64/29,194.70
  6. Step 6: Final answer
    x = 32,064.89

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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.