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Finding the Fourth Proportional to 10,978,986.95, 15,150,817.01 and 6,084,199.07

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Solution

The fourth proportional to 10,978,986.95, 15,150,817.01 and 6,084,199.07 is: 8,396,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,978,986.95 : 15,150,817.01 = 6,084,199.07 : x
  2. Step 2: Convert to fraction form
    10,978,986.95/15,150,817.01 = 6,084,199.07/x
  3. Step 3: Cross multiply
    10,978,986.95x = 15,150,817.01 × 6,084,199.07
  4. Step 4: Simplify right side
    10,978,986.95x = 92,180,586,686,228.09
  5. Step 5: Solve for x
    x = 92,180,586,686,228.09/10,978,986.95
  6. Step 6: Final answer
    x = 8,396,092.20

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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.