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Finding the Fourth Proportional to 11,801,972.90, 17,702,959.35 and 11,801,972.90

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Solution

The fourth proportional to 11,801,972.90, 17,702,959.35 and 11,801,972.90 is: 17,702,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801,972.90 : 17,702,959.35 = 11,801,972.90 : x
  2. Step 2: Convert to fraction form
    11,801,972.90/17,702,959.35 = 11,801,972.90/x
  3. Step 3: Cross multiply
    11,801,972.90x = 17,702,959.35 × 11,801,972.90
  4. Step 4: Simplify right side
    11,801,972.90x = 208,929,846,498,501.62
  5. Step 5: Solve for x
    x = 208,929,846,498,501.62/11,801,972.90
  6. Step 6: Final answer
    x = 17,702,959.35

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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.