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Finding the Fourth Proportional to 5,889,870.80, 8,829,622.20 and 3,990,453.20

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Solution

The fourth proportional to 5,889,870.80, 8,829,622.20 and 3,990,453.20 is: 5,982,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889,870.80 : 8,829,622.20 = 3,990,453.20 : x
  2. Step 2: Convert to fraction form
    5,889,870.80/8,829,622.20 = 3,990,453.20/x
  3. Step 3: Cross multiply
    5,889,870.80x = 8,829,622.20 × 3,990,453.20
  4. Step 4: Simplify right side
    5,889,870.80x = 35,234,194,162,781.04
  5. Step 5: Solve for x
    x = 35,234,194,162,781.04/5,889,870.80
  6. Step 6: Final answer
    x = 5,982,167.58

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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.