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Finding the Fourth Proportional to 5,879,821.50, 8,819,732.25 and 1,890,733.50

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Solution

The fourth proportional to 5,879,821.50, 8,819,732.25 and 1,890,733.50 is: 2,836,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879,821.50 : 8,819,732.25 = 1,890,733.50 : x
  2. Step 2: Convert to fraction form
    5,879,821.50/8,819,732.25 = 1,890,733.50/x
  3. Step 3: Cross multiply
    5,879,821.50x = 8,819,732.25 × 1,890,733.50
  4. Step 4: Simplify right side
    5,879,821.50x = 16,675,763,226,105.38
  5. Step 5: Solve for x
    x = 16,675,763,226,105.38/5,879,821.50
  6. Step 6: Final answer
    x = 2,836,100.25

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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.