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Finding the Fourth Proportional to 14,028.43, 21,041.82 and 5,262.61

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Solution

The fourth proportional to 14,028.43, 21,041.82 and 5,262.61 is: 7,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.43 : 21,041.82 = 5,262.61 : x
  2. Step 2: Convert to fraction form
    14,028.43/21,041.82 = 5,262.61/x
  3. Step 3: Cross multiply
    14,028.43x = 21,041.82 × 5,262.61
  4. Step 4: Simplify right side
    14,028.43x = 110,734,892.35
  5. Step 5: Solve for x
    x = 110,734,892.35/14,028.43
  6. Step 6: Final answer
    x = 7,893.61

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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.