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Finding the Fourth Proportional to 17,804,453.60, 26,706,680.40 and 12,419,184.80

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Solution

The fourth proportional to 17,804,453.60, 26,706,680.40 and 12,419,184.80 is: 18,628,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804,453.60 : 26,706,680.40 = 12,419,184.80 : x
  2. Step 2: Convert to fraction form
    17,804,453.60/26,706,680.40 = 12,419,184.80/x
  3. Step 3: Cross multiply
    17,804,453.60x = 26,706,680.40 × 12,419,184.80
  4. Step 4: Simplify right side
    17,804,453.60x = 331,675,199,282,137.94
  5. Step 5: Solve for x
    x = 331,675,199,282,137.94/17,804,453.60
  6. Step 6: Final answer
    x = 18,628,777.20

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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.