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Finding the Fourth Proportional to 55,125.70, 82,765.35 and 34,389.70

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Solution

The fourth proportional to 55,125.70, 82,765.35 and 34,389.70 is: 51,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,125.70 : 82,765.35 = 34,389.70 : x
  2. Step 2: Convert to fraction form
    55,125.70/82,765.35 = 34,389.70/x
  3. Step 3: Cross multiply
    55,125.70x = 82,765.35 × 34,389.70
  4. Step 4: Simplify right side
    55,125.70x = 2,846,275,556.90
  5. Step 5: Solve for x
    x = 2,846,275,556.90/55,125.70
  6. Step 6: Final answer
    x = 51,632.46

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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.