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Finding the Fourth Proportional to 37,965,595.80, 52,392,505.44 and 20,561,940.60

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Solution

The fourth proportional to 37,965,595.80, 52,392,505.44 and 20,561,940.60 is: 28,375,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,965,595.80 : 52,392,505.44 = 20,561,940.60 : x
  2. Step 2: Convert to fraction form
    37,965,595.80/52,392,505.44 = 20,561,940.60/x
  3. Step 3: Cross multiply
    37,965,595.80x = 52,392,505.44 × 20,561,940.60
  4. Step 4: Simplify right side
    37,965,595.80x = 1,077,291,584,742,456.88
  5. Step 5: Solve for x
    x = 1,077,291,584,742,456.88/37,965,595.80
  6. Step 6: Final answer
    x = 28,375,468.95

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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.