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Finding the Fourth Proportional to 7,043.56, 9,720.09 and 4,058.29

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Solution

The fourth proportional to 7,043.56, 9,720.09 and 4,058.29 is: 5,600.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.56 : 9,720.09 = 4,058.29 : x
  2. Step 2: Convert to fraction form
    7,043.56/9,720.09 = 4,058.29/x
  3. Step 3: Cross multiply
    7,043.56x = 9,720.09 × 4,058.29
  4. Step 4: Simplify right side
    7,043.56x = 39,446,944.05
  5. Step 5: Solve for x
    x = 39,446,944.05/7,043.56
  6. Step 6: Final answer
    x = 5,600.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.