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Finding the Fourth Proportional to 16,991,108.80, 25,444,672.80 and 11,280,414.40

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Solution

The fourth proportional to 16,991,108.80, 25,444,672.80 and 11,280,414.40 is: 16,892,744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991,108.80 : 25,444,672.80 = 11,280,414.40 : x
  2. Step 2: Convert to fraction form
    16,991,108.80/25,444,672.80 = 11,280,414.40/x
  3. Step 3: Cross multiply
    16,991,108.80x = 25,444,672.80 × 11,280,414.40
  4. Step 4: Simplify right side
    16,991,108.80x = 287,026,453,456,408.31
  5. Step 5: Solve for x
    x = 287,026,453,456,408.31/16,991,108.80
  6. Step 6: Final answer
    x = 16,892,744.13

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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.