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Finding the Fourth Proportional to 5,377,809.70, 8,069,824.95 and 2,012,356.90

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Solution

The fourth proportional to 5,377,809.70, 8,069,824.95 and 2,012,356.90 is: 3,019,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377,809.70 : 8,069,824.95 = 2,012,356.90 : x
  2. Step 2: Convert to fraction form
    5,377,809.70/8,069,824.95 = 2,012,356.90/x
  3. Step 3: Cross multiply
    5,377,809.70x = 8,069,824.95 × 2,012,356.90
  4. Step 4: Simplify right side
    5,377,809.70x = 16,239,367,919,924.65
  5. Step 5: Solve for x
    x = 16,239,367,919,924.65/5,377,809.70
  6. Step 6: Final answer
    x = 3,019,699.25

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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.