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Finding the Fourth Proportional to 18,574,906.90, 27,862,360.35 and 9,965,562.70

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Solution

The fourth proportional to 18,574,906.90, 27,862,360.35 and 9,965,562.70 is: 14,948,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574,906.90 : 27,862,360.35 = 9,965,562.70 : x
  2. Step 2: Convert to fraction form
    18,574,906.90/27,862,360.35 = 9,965,562.70/x
  3. Step 3: Cross multiply
    18,574,906.90x = 27,862,360.35 × 9,965,562.70
  4. Step 4: Simplify right side
    18,574,906.90x = 277,664,099,037,918.94
  5. Step 5: Solve for x
    x = 277,664,099,037,918.94/18,574,906.90
  6. Step 6: Final answer
    x = 14,948,344.05

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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.