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Finding the Fourth Proportional to 13,285,961.90, 19,893,513.45 and 13,285,961.90

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Solution

The fourth proportional to 13,285,961.90, 19,893,513.45 and 13,285,961.90 is: 19,893,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,961.90 : 19,893,513.45 = 13,285,961.90 : x
  2. Step 2: Convert to fraction form
    13,285,961.90/19,893,513.45 = 13,285,961.90/x
  3. Step 3: Cross multiply
    13,285,961.90x = 19,893,513.45 × 13,285,961.90
  4. Step 4: Simplify right side
    13,285,961.90x = 264,304,461,753,837.56
  5. Step 5: Solve for x
    x = 264,304,461,753,837.56/13,285,961.90
  6. Step 6: Final answer
    x = 19,893,513.45

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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.