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Finding the Fourth Proportional to 8,661,361.84, 12,986,137.80 and 4,393,300.12

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Solution

The fourth proportional to 8,661,361.84, 12,986,137.80 and 4,393,300.12 is: 6,586,955.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661,361.84 : 12,986,137.80 = 4,393,300.12 : x
  2. Step 2: Convert to fraction form
    8,661,361.84/12,986,137.80 = 4,393,300.12/x
  3. Step 3: Cross multiply
    8,661,361.84x = 12,986,137.80 × 4,393,300.12
  4. Step 4: Simplify right side
    8,661,361.84x = 57,052,000,755,076.54
  5. Step 5: Solve for x
    x = 57,052,000,755,076.54/8,661,361.84
  6. Step 6: Final answer
    x = 6,586,955.01

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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.