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Finding the Fourth Proportional to 18,474,929.22, 25,489,802.73 and 12,893,027.25

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Solution

The fourth proportional to 18,474,929.22, 25,489,802.73 and 12,893,027.25 is: 17,788,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474,929.22 : 25,489,802.73 = 12,893,027.25 : x
  2. Step 2: Convert to fraction form
    18,474,929.22/25,489,802.73 = 12,893,027.25/x
  3. Step 3: Cross multiply
    18,474,929.22x = 25,489,802.73 × 12,893,027.25
  4. Step 4: Simplify right side
    18,474,929.22x = 328,640,721,195,014.38
  5. Step 5: Solve for x
    x = 328,640,721,195,014.38/18,474,929.22
  6. Step 6: Final answer
    x = 17,788,469.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.