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Finding the Fourth Proportional to 18,150,676.80, 25,429,843.20 and 18,150,676.80

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Solution

The fourth proportional to 18,150,676.80, 25,429,843.20 and 18,150,676.80 is: 25,429,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150,676.80 : 25,429,843.20 = 18,150,676.80 : x
  2. Step 2: Convert to fraction form
    18,150,676.80/25,429,843.20 = 18,150,676.80/x
  3. Step 3: Cross multiply
    18,150,676.80x = 25,429,843.20 × 18,150,676.80
  4. Step 4: Simplify right side
    18,150,676.80x = 461,568,864,997,877.75
  5. Step 5: Solve for x
    x = 461,568,864,997,877.75/18,150,676.80
  6. Step 6: Final answer
    x = 25,429,843.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.