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Finding the Fourth Proportional to 5,809,062.60, 8,721,888.30 and 3,289,638.60

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Solution

The fourth proportional to 5,809,062.60, 8,721,888.30 and 3,289,638.60 is: 4,939,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809,062.60 : 8,721,888.30 = 3,289,638.60 : x
  2. Step 2: Convert to fraction form
    5,809,062.60/8,721,888.30 = 3,289,638.60/x
  3. Step 3: Cross multiply
    5,809,062.60x = 8,721,888.30 × 3,289,638.60
  4. Step 4: Simplify right side
    5,809,062.60x = 28,691,860,416,568.38
  5. Step 5: Solve for x
    x = 28,691,860,416,568.38/5,809,062.60
  6. Step 6: Final answer
    x = 4,939,154.97

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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.