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Finding the Fourth Proportional to 19,177.96, 26,454.18 and 11,713

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Solution

The fourth proportional to 19,177.96, 26,454.18 and 11,713 is: 16,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,177.96 : 26,454.18 = 11,713 : x
  2. Step 2: Convert to fraction form
    19,177.96/26,454.18 = 11,713/x
  3. Step 3: Cross multiply
    19,177.96x = 26,454.18 × 11,713
  4. Step 4: Simplify right side
    19,177.96x = 309,857,810.34
  5. Step 5: Solve for x
    x = 309,857,810.34/19,177.96
  6. Step 6: Final answer
    x = 16,156.97

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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.