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Finding the Fourth Proportional to 20,160,992.20, 30,241,488.36 and 20,160,992.20

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Solution

The fourth proportional to 20,160,992.20, 30,241,488.36 and 20,160,992.20 is: 30,241,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,992.20 : 30,241,488.36 = 20,160,992.20 : x
  2. Step 2: Convert to fraction form
    20,160,992.20/30,241,488.36 = 20,160,992.20/x
  3. Step 3: Cross multiply
    20,160,992.20x = 30,241,488.36 × 20,160,992.20
  4. Step 4: Simplify right side
    20,160,992.20x = 609,698,410,942,350.75
  5. Step 5: Solve for x
    x = 609,698,410,942,350.75/20,160,992.20
  6. Step 6: Final answer
    x = 30,241,488.36

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1.5x scale

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.