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Finding the Fourth Proportional to 11,796.22, 16,277.34 and 6,490.72

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Solution

The fourth proportional to 11,796.22, 16,277.34 and 6,490.72 is: 8,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,796.22 : 16,277.34 = 6,490.72 : x
  2. Step 2: Convert to fraction form
    11,796.22/16,277.34 = 6,490.72/x
  3. Step 3: Cross multiply
    11,796.22x = 16,277.34 × 6,490.72
  4. Step 4: Simplify right side
    11,796.22x = 105,651,656.28
  5. Step 5: Solve for x
    x = 105,651,656.28/11,796.22
  6. Step 6: Final answer
    x = 8,956.40

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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.