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Finding the Fourth Proportional to 17,063,929.20, 25,595,893.80 and 15,384,313.20

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Solution

The fourth proportional to 17,063,929.20, 25,595,893.80 and 15,384,313.20 is: 23,076,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,063,929.20 : 25,595,893.80 = 15,384,313.20 : x
  2. Step 2: Convert to fraction form
    17,063,929.20/25,595,893.80 = 15,384,313.20/x
  3. Step 3: Cross multiply
    17,063,929.20x = 25,595,893.80 × 15,384,313.20
  4. Step 4: Simplify right side
    17,063,929.20x = 393,775,246,853,138.12
  5. Step 5: Solve for x
    x = 393,775,246,853,138.12/17,063,929.20
  6. Step 6: Final answer
    x = 23,076,469.80

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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.