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Finding the Fourth Proportional to 8,917,305.98, 13,371,745.47 and 3,454,959.78

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Solution

The fourth proportional to 8,917,305.98, 13,371,745.47 and 3,454,959.78 is: 5,180,807.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917,305.98 : 13,371,745.47 = 3,454,959.78 : x
  2. Step 2: Convert to fraction form
    8,917,305.98/13,371,745.47 = 3,454,959.78/x
  3. Step 3: Cross multiply
    8,917,305.98x = 13,371,745.47 × 3,454,959.78
  4. Step 4: Simplify right side
    8,917,305.98x = 46,198,842,787,247.20
  5. Step 5: Solve for x
    x = 46,198,842,787,247.20/8,917,305.98
  6. Step 6: Final answer
    x = 5,180,807.18

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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.