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Finding the Fourth Proportional to 21,058.91, 29,060.74 and 11,627.27

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Solution

The fourth proportional to 21,058.91, 29,060.74 and 11,627.27 is: 16,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.91 : 29,060.74 = 11,627.27 : x
  2. Step 2: Convert to fraction form
    21,058.91/29,060.74 = 11,627.27/x
  3. Step 3: Cross multiply
    21,058.91x = 29,060.74 × 11,627.27
  4. Step 4: Simplify right side
    21,058.91x = 337,897,070.38
  5. Step 5: Solve for x
    x = 337,897,070.38/21,058.91
  6. Step 6: Final answer
    x = 16,045.33

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Why These Related Problems?

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