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Finding the Fourth Proportional to 18,805,822.88, 28,219,363.16 and 8,022,104.96

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Solution

The fourth proportional to 18,805,822.88, 28,219,363.16 and 8,022,104.96 is: 12,037,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,822.88 : 28,219,363.16 = 8,022,104.96 : x
  2. Step 2: Convert to fraction form
    18,805,822.88/28,219,363.16 = 8,022,104.96/x
  3. Step 3: Cross multiply
    18,805,822.88x = 28,219,363.16 × 8,022,104.96
  4. Step 4: Simplify right side
    18,805,822.88x = 226,378,693,173,877.28
  5. Step 5: Solve for x
    x = 226,378,693,173,877.28/18,805,822.88
  6. Step 6: Final answer
    x = 12,037,691.44

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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.