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Finding the Fourth Proportional to 41,090.86, 61,636.38 and 9,926.11

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Solution

The fourth proportional to 41,090.86, 61,636.38 and 9,926.11 is: 14,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,090.86 : 61,636.38 = 9,926.11 : x
  2. Step 2: Convert to fraction form
    41,090.86/61,636.38 = 9,926.11/x
  3. Step 3: Cross multiply
    41,090.86x = 61,636.38 × 9,926.11
  4. Step 4: Simplify right side
    41,090.86x = 611,809,487.88
  5. Step 5: Solve for x
    x = 611,809,487.88/41,090.86
  6. Step 6: Final answer
    x = 14,889.19

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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.