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Finding the Fourth Proportional to 50,457.72, 69,629.16 and 29,243.88

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Solution

The fourth proportional to 50,457.72, 69,629.16 and 29,243.88 is: 40,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,457.72 : 69,629.16 = 29,243.88 : x
  2. Step 2: Convert to fraction form
    50,457.72/69,629.16 = 29,243.88/x
  3. Step 3: Cross multiply
    50,457.72x = 69,629.16 × 29,243.88
  4. Step 4: Simplify right side
    50,457.72x = 2,036,226,799.54
  5. Step 5: Solve for x
    x = 2,036,226,799.54/50,457.72
  6. Step 6: Final answer
    x = 40,355.11

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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.