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Finding the Fourth Proportional to 20,019,114.45, 30,028,671.69 and 20,019,114.45

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Solution

The fourth proportional to 20,019,114.45, 30,028,671.69 and 20,019,114.45 is: 30,028,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,114.45 : 30,028,671.69 = 20,019,114.45 : x
  2. Step 2: Convert to fraction form
    20,019,114.45/30,028,671.69 = 20,019,114.45/x
  3. Step 3: Cross multiply
    20,019,114.45x = 30,028,671.69 × 20,019,114.45
  4. Step 4: Simplify right side
    20,019,114.45x = 601,147,415,343,584.88
  5. Step 5: Solve for x
    x = 601,147,415,343,584.88/20,019,114.45
  6. Step 6: Final answer
    x = 30,028,671.69

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Similar ratio
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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.