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Finding the Fourth Proportional to 55,903.70, 83,859.60 and 33,669.20

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Solution

The fourth proportional to 55,903.70, 83,859.60 and 33,669.20 is: 50,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.70 : 83,859.60 = 33,669.20 : x
  2. Step 2: Convert to fraction form
    55,903.70/83,859.60 = 33,669.20/x
  3. Step 3: Cross multiply
    55,903.70x = 83,859.60 × 33,669.20
  4. Step 4: Simplify right side
    55,903.70x = 2,823,485,644.32
  5. Step 5: Solve for x
    x = 2,823,485,644.32/55,903.70
  6. Step 6: Final answer
    x = 50,506.24

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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.