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Finding the Fourth Proportional to 18,834,093.60, 28,251,140.40 and 9,255,616.80

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Solution

The fourth proportional to 18,834,093.60, 28,251,140.40 and 9,255,616.80 is: 13,883,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834,093.60 : 28,251,140.40 = 9,255,616.80 : x
  2. Step 2: Convert to fraction form
    18,834,093.60/28,251,140.40 = 9,255,616.80/x
  3. Step 3: Cross multiply
    18,834,093.60x = 28,251,140.40 × 9,255,616.80
  4. Step 4: Simplify right side
    18,834,093.60x = 261,481,729,705,398.72
  5. Step 5: Solve for x
    x = 261,481,729,705,398.72/18,834,093.60
  6. Step 6: Final answer
    x = 13,883,425.20

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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.