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Finding the Fourth Proportional to 19,128,793.35, 28,693,190.03 and 19,128,793.35

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Solution

The fourth proportional to 19,128,793.35, 28,693,190.03 and 19,128,793.35 is: 28,693,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128,793.35 : 28,693,190.03 = 19,128,793.35 : x
  2. Step 2: Convert to fraction form
    19,128,793.35/28,693,190.03 = 19,128,793.35/x
  3. Step 3: Cross multiply
    19,128,793.35x = 28,693,190.03 × 19,128,793.35
  4. Step 4: Simplify right side
    19,128,793.35x = 548,866,102,540,506.38
  5. Step 5: Solve for x
    x = 548,866,102,540,506.38/19,128,793.35
  6. Step 6: Final answer
    x = 28,693,190.03

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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.