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Finding the Fourth Proportional to 18,801,629.80, 28,204,518.30 and 6,019,959.40

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Solution

The fourth proportional to 18,801,629.80, 28,204,518.30 and 6,019,959.40 is: 9,030,603.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,629.80 : 28,204,518.30 = 6,019,959.40 : x
  2. Step 2: Convert to fraction form
    18,801,629.80/28,204,518.30 = 6,019,959.40/x
  3. Step 3: Cross multiply
    18,801,629.80x = 28,204,518.30 × 6,019,959.40
  4. Step 4: Simplify right side
    18,801,629.80x = 169,790,055,062,557.03
  5. Step 5: Solve for x
    x = 169,790,055,062,557.03/18,801,629.80
  6. Step 6: Final answer
    x = 9,030,603.03

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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.