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Finding the Fourth Proportional to 27,572.47, 38,058.66 and 15,643.73

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Solution

The fourth proportional to 27,572.47, 38,058.66 and 15,643.73 is: 21,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,572.47 : 38,058.66 = 15,643.73 : x
  2. Step 2: Convert to fraction form
    27,572.47/38,058.66 = 15,643.73/x
  3. Step 3: Cross multiply
    27,572.47x = 38,058.66 × 15,643.73
  4. Step 4: Simplify right side
    27,572.47x = 595,379,401.20
  5. Step 5: Solve for x
    x = 595,379,401.20/27,572.47
  6. Step 6: Final answer
    x = 21,593.26

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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.