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Finding the Fourth Proportional to 19,646,649.28, 29,474,692.92 and 7,515,914.32

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Solution

The fourth proportional to 19,646,649.28, 29,474,692.92 and 7,515,914.32 is: 11,275,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646,649.28 : 29,474,692.92 = 7,515,914.32 : x
  2. Step 2: Convert to fraction form
    19,646,649.28/29,474,692.92 = 7,515,914.32/x
  3. Step 3: Cross multiply
    19,646,649.28x = 29,474,692.92 × 7,515,914.32
  4. Step 4: Simplify right side
    19,646,649.28x = 221,529,266,595,030.62
  5. Step 5: Solve for x
    x = 221,529,266,595,030.62/19,646,649.28
  6. Step 6: Final answer
    x = 11,275,676.75

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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.