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Finding the Fourth Proportional to 8,532,418.40, 12,798,627.60 and 6,264,936.80

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Solution

The fourth proportional to 8,532,418.40, 12,798,627.60 and 6,264,936.80 is: 9,397,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532,418.40 : 12,798,627.60 = 6,264,936.80 : x
  2. Step 2: Convert to fraction form
    8,532,418.40/12,798,627.60 = 6,264,936.80/x
  3. Step 3: Cross multiply
    8,532,418.40x = 12,798,627.60 × 6,264,936.80
  4. Step 4: Simplify right side
    8,532,418.40x = 80,182,593,040,735.67
  5. Step 5: Solve for x
    x = 80,182,593,040,735.67/8,532,418.40
  6. Step 6: Final answer
    x = 9,397,405.20

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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.