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Finding the Fourth Proportional to 3,971,780.70, 5,957,671.05 and 3,971,780.70

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Solution

The fourth proportional to 3,971,780.70, 5,957,671.05 and 3,971,780.70 is: 5,957,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971,780.70 : 5,957,671.05 = 3,971,780.70 : x
  2. Step 2: Convert to fraction form
    3,971,780.70/5,957,671.05 = 3,971,780.70/x
  3. Step 3: Cross multiply
    3,971,780.70x = 5,957,671.05 × 3,971,780.70
  4. Step 4: Simplify right side
    3,971,780.70x = 23,662,562,893,338.73
  5. Step 5: Solve for x
    x = 23,662,562,893,338.73/3,971,780.70
  6. Step 6: Final answer
    x = 5,957,671.05

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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.