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Finding the Fourth Proportional to 5,969,807.80, 8,954,711.70 and 1,980,201.40

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Solution

The fourth proportional to 5,969,807.80, 8,954,711.70 and 1,980,201.40 is: 2,970,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,969,807.80 : 8,954,711.70 = 1,980,201.40 : x
  2. Step 2: Convert to fraction form
    5,969,807.80/8,954,711.70 = 1,980,201.40/x
  3. Step 3: Cross multiply
    5,969,807.80x = 8,954,711.70 × 1,980,201.40
  4. Step 4: Simplify right side
    5,969,807.80x = 17,732,132,644,936.38
  5. Step 5: Solve for x
    x = 17,732,132,644,936.38/5,969,807.80
  6. Step 6: Final answer
    x = 2,970,302.10

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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.