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Finding the Fourth Proportional to 50,648.84, 75,950.18 and 21,049.02

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Solution

The fourth proportional to 50,648.84, 75,950.18 and 21,049.02 is: 31,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,648.84 : 75,950.18 = 21,049.02 : x
  2. Step 2: Convert to fraction form
    50,648.84/75,950.18 = 21,049.02/x
  3. Step 3: Cross multiply
    50,648.84x = 75,950.18 × 21,049.02
  4. Step 4: Simplify right side
    50,648.84x = 1,598,676,857.82
  5. Step 5: Solve for x
    x = 1,598,676,857.82/50,648.84
  6. Step 6: Final answer
    x = 31,563.94

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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.