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Finding the Fourth Proportional to 50,823.68, 69,991.68 and 45,744.64

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Solution

The fourth proportional to 50,823.68, 69,991.68 and 45,744.64 is: 62,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,823.68 : 69,991.68 = 45,744.64 : x
  2. Step 2: Convert to fraction form
    50,823.68/69,991.68 = 45,744.64/x
  3. Step 3: Cross multiply
    50,823.68x = 69,991.68 × 45,744.64
  4. Step 4: Simplify right side
    50,823.68x = 3,201,744,204.60
  5. Step 5: Solve for x
    x = 3,201,744,204.60/50,823.68
  6. Step 6: Final answer
    x = 62,997.10

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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.