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Finding the Fourth Proportional to 14,049.56, 21,058.43 and 5,719.11

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Solution

The fourth proportional to 14,049.56, 21,058.43 and 5,719.11 is: 8,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.56 : 21,058.43 = 5,719.11 : x
  2. Step 2: Convert to fraction form
    14,049.56/21,058.43 = 5,719.11/x
  3. Step 3: Cross multiply
    14,049.56x = 21,058.43 × 5,719.11
  4. Step 4: Simplify right side
    14,049.56x = 120,435,477.60
  5. Step 5: Solve for x
    x = 120,435,477.60/14,049.56
  6. Step 6: Final answer
    x = 8,572.19

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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.