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Finding the Fourth Proportional to 6,787,830.33, 9,367,008.66 and 3,847,920.12

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Solution

The fourth proportional to 6,787,830.33, 9,367,008.66 and 3,847,920.12 is: 5,310,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787,830.33 : 9,367,008.66 = 3,847,920.12 : x
  2. Step 2: Convert to fraction form
    6,787,830.33/9,367,008.66 = 3,847,920.12/x
  3. Step 3: Cross multiply
    6,787,830.33x = 9,367,008.66 × 3,847,920.12
  4. Step 4: Simplify right side
    6,787,830.33x = 36,043,501,087,028.24
  5. Step 5: Solve for x
    x = 36,043,501,087,028.24/6,787,830.33
  6. Step 6: Final answer
    x = 5,310,017.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.