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Finding the Fourth Proportional to 7,083,657.30, 9,936,015.90 and 7,083,657.30

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Solution

The fourth proportional to 7,083,657.30, 9,936,015.90 and 7,083,657.30 is: 9,936,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083,657.30 : 9,936,015.90 = 7,083,657.30 : x
  2. Step 2: Convert to fraction form
    7,083,657.30/9,936,015.90 = 7,083,657.30/x
  3. Step 3: Cross multiply
    7,083,657.30x = 9,936,015.90 × 7,083,657.30
  4. Step 4: Simplify right side
    7,083,657.30x = 70,383,331,562,951.08
  5. Step 5: Solve for x
    x = 70,383,331,562,951.08/7,083,657.30
  6. Step 6: Final answer
    x = 9,936,015.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.