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Finding the Fourth Proportional to 13,752,705.67, 18,978,846.38 and 8,599,054.75

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Solution

The fourth proportional to 13,752,705.67, 18,978,846.38 and 8,599,054.75 is: 11,866,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752,705.67 : 18,978,846.38 = 8,599,054.75 : x
  2. Step 2: Convert to fraction form
    13,752,705.67/18,978,846.38 = 8,599,054.75/x
  3. Step 3: Cross multiply
    13,752,705.67x = 18,978,846.38 × 8,599,054.75
  4. Step 4: Simplify right side
    13,752,705.67x = 163,200,139,055,263.38
  5. Step 5: Solve for x
    x = 163,200,139,055,263.38/13,752,705.67
  6. Step 6: Final answer
    x = 11,866,765.93

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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.