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Finding the Fourth Proportional to 5,671,805.90, 8,511,856.05 and 3,777,917.90

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Solution

The fourth proportional to 5,671,805.90, 8,511,856.05 and 3,777,917.90 is: 5,669,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671,805.90 : 8,511,856.05 = 3,777,917.90 : x
  2. Step 2: Convert to fraction form
    5,671,805.90/8,511,856.05 = 3,777,917.90/x
  3. Step 3: Cross multiply
    5,671,805.90x = 8,511,856.05 × 3,777,917.90
  4. Step 4: Simplify right side
    5,671,805.90x = 32,157,093,333,518.30
  5. Step 5: Solve for x
    x = 32,157,093,333,518.30/5,671,805.90
  6. Step 6: Final answer
    x = 5,669,639.25

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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.