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Finding the Fourth Proportional to 17,963,138.70, 25,212,167.10 and 17,963,138.70

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Solution

The fourth proportional to 17,963,138.70, 25,212,167.10 and 17,963,138.70 is: 25,212,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963,138.70 : 25,212,167.10 = 17,963,138.70 : x
  2. Step 2: Convert to fraction form
    17,963,138.70/25,212,167.10 = 17,963,138.70/x
  3. Step 3: Cross multiply
    17,963,138.70x = 25,212,167.10 × 17,963,138.70
  4. Step 4: Simplify right side
    17,963,138.70x = 452,889,654,544,876.75
  5. Step 5: Solve for x
    x = 452,889,654,544,876.75/17,963,138.70
  6. Step 6: Final answer
    x = 25,212,167.10

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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.