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Finding the Fourth Proportional to 8,899,638.60, 13,351,644.90 and 2,509,807.80

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Solution

The fourth proportional to 8,899,638.60, 13,351,644.90 and 2,509,807.80 is: 3,765,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899,638.60 : 13,351,644.90 = 2,509,807.80 : x
  2. Step 2: Convert to fraction form
    8,899,638.60/13,351,644.90 = 2,509,807.80/x
  3. Step 3: Cross multiply
    8,899,638.60x = 13,351,644.90 × 2,509,807.80
  4. Step 4: Simplify right side
    8,899,638.60x = 33,510,062,512,850.22
  5. Step 5: Solve for x
    x = 33,510,062,512,850.22/8,899,638.60
  6. Step 6: Final answer
    x = 3,765,328.46

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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.