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Finding the Fourth Proportional to 5,752,815.65, 8,626,980.88 and 2,156,620.38

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Solution

The fourth proportional to 5,752,815.65, 8,626,980.88 and 2,156,620.38 is: 3,234,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752,815.65 : 8,626,980.88 = 2,156,620.38 : x
  2. Step 2: Convert to fraction form
    5,752,815.65/8,626,980.88 = 2,156,620.38/x
  3. Step 3: Cross multiply
    5,752,815.65x = 8,626,980.88 × 2,156,620.38
  4. Step 4: Simplify right side
    5,752,815.65x = 18,605,122,783,678.34
  5. Step 5: Solve for x
    x = 18,605,122,783,678.34/5,752,815.65
  6. Step 6: Final answer
    x = 3,234,089.86

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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.