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Finding the Fourth Proportional to 16,991,733.80, 25,487,600.70 and 12,244,194.20

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Solution

The fourth proportional to 16,991,733.80, 25,487,600.70 and 12,244,194.20 is: 18,366,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991,733.80 : 25,487,600.70 = 12,244,194.20 : x
  2. Step 2: Convert to fraction form
    16,991,733.80/25,487,600.70 = 12,244,194.20/x
  3. Step 3: Cross multiply
    16,991,733.80x = 25,487,600.70 × 12,244,194.20
  4. Step 4: Simplify right side
    16,991,733.80x = 312,075,132,662,855.94
  5. Step 5: Solve for x
    x = 312,075,132,662,855.94/16,991,733.80
  6. Step 6: Final answer
    x = 18,366,291.30

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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.