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Finding the Fourth Proportional to 37,140.70, 55,719.15 and 10,843.30

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Solution

The fourth proportional to 37,140.70, 55,719.15 and 10,843.30 is: 16,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,140.70 : 55,719.15 = 10,843.30 : x
  2. Step 2: Convert to fraction form
    37,140.70/55,719.15 = 10,843.30/x
  3. Step 3: Cross multiply
    37,140.70x = 55,719.15 × 10,843.30
  4. Step 4: Simplify right side
    37,140.70x = 604,179,459.20
  5. Step 5: Solve for x
    x = 604,179,459.20/37,140.70
  6. Step 6: Final answer
    x = 16,267.31

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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.