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Finding the Fourth Proportional to 5,636,986.65, 8,451,339.12 and 1,796,599.26

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Solution

The fourth proportional to 5,636,986.65, 8,451,339.12 and 1,796,599.26 is: 2,693,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636,986.65 : 8,451,339.12 = 1,796,599.26 : x
  2. Step 2: Convert to fraction form
    5,636,986.65/8,451,339.12 = 1,796,599.26/x
  3. Step 3: Cross multiply
    5,636,986.65x = 8,451,339.12 × 1,796,599.26
  4. Step 4: Simplify right side
    5,636,986.65x = 15,183,669,609,001.05
  5. Step 5: Solve for x
    x = 15,183,669,609,001.05/5,636,986.65
  6. Step 6: Final answer
    x = 2,693,579.13

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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.