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Finding the Fourth Proportional to 13,950.63, 20,926.12 and 4,090.10

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Solution

The fourth proportional to 13,950.63, 20,926.12 and 4,090.10 is: 6,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.63 : 20,926.12 = 4,090.10 : x
  2. Step 2: Convert to fraction form
    13,950.63/20,926.12 = 4,090.10/x
  3. Step 3: Cross multiply
    13,950.63x = 20,926.12 × 4,090.10
  4. Step 4: Simplify right side
    13,950.63x = 85,589,965.50
  5. Step 5: Solve for x
    x = 85,589,965.50/13,950.63
  6. Step 6: Final answer
    x = 6,135.20

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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.