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Finding the Fourth Proportional to 17,978,636.05, 26,968,456.54 and 5,848,099.56

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Solution

The fourth proportional to 17,978,636.05, 26,968,456.54 and 5,848,099.56 is: 8,772,312.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978,636.05 : 26,968,456.54 = 5,848,099.56 : x
  2. Step 2: Convert to fraction form
    17,978,636.05/26,968,456.54 = 5,848,099.56/x
  3. Step 3: Cross multiply
    17,978,636.05x = 26,968,456.54 × 5,848,099.56
  4. Step 4: Simplify right side
    17,978,636.05x = 157,714,218,832,763.25
  5. Step 5: Solve for x
    x = 157,714,218,832,763.25/17,978,636.05
  6. Step 6: Final answer
    x = 8,772,312.78

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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.