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Finding the Fourth Proportional to 10,978,988.94, 15,150,819.72 and 6,084,201.06

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Solution

The fourth proportional to 10,978,988.94, 15,150,819.72 and 6,084,201.06 is: 8,396,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,978,988.94 : 15,150,819.72 = 6,084,201.06 : x
  2. Step 2: Convert to fraction form
    10,978,988.94/15,150,819.72 = 6,084,201.06/x
  3. Step 3: Cross multiply
    10,978,988.94x = 15,150,819.72 × 6,084,201.06
  4. Step 4: Simplify right side
    10,978,988.94x = 92,180,633,400,292.91
  5. Step 5: Solve for x
    x = 92,180,633,400,292.91/10,978,988.94
  6. Step 6: Final answer
    x = 8,396,094.93

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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.