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Finding the Fourth Proportional to 16,991,626.80, 25,445,449.80 and 11,280,932.40

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Solution

The fourth proportional to 16,991,626.80, 25,445,449.80 and 11,280,932.40 is: 16,893,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991,626.80 : 25,445,449.80 = 11,280,932.40 : x
  2. Step 2: Convert to fraction form
    16,991,626.80/25,445,449.80 = 11,280,932.40/x
  3. Step 3: Cross multiply
    16,991,626.80x = 25,445,449.80 × 11,280,932.40
  4. Step 4: Simplify right side
    16,991,626.80x = 287,048,399,081,393.56
  5. Step 5: Solve for x
    x = 287,048,399,081,393.56/16,991,626.80
  6. Step 6: Final answer
    x = 16,893,520.70

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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.