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Finding the Fourth Proportional to 9,792,921.40, 14,671,667.40 and 8,375,745.40

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Solution

The fourth proportional to 9,792,921.40, 14,671,667.40 and 8,375,745.40 is: 12,548,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792,921.40 : 14,671,667.40 = 8,375,745.40 : x
  2. Step 2: Convert to fraction form
    9,792,921.40/14,671,667.40 = 8,375,745.40/x
  3. Step 3: Cross multiply
    9,792,921.40x = 14,671,667.40 × 8,375,745.40
  4. Step 4: Simplify right side
    9,792,921.40x = 122,886,150,735,879.97
  5. Step 5: Solve for x
    x = 122,886,150,735,879.97/9,792,921.40
  6. Step 6: Final answer
    x = 12,548,466.97

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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.