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Finding the Fourth Proportional to 8,978,922.90, 13,470,374.52 and 2,588,676.57

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Solution

The fourth proportional to 8,978,922.90, 13,470,374.52 and 2,588,676.57 is: 3,883,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,922.90 : 13,470,374.52 = 2,588,676.57 : x
  2. Step 2: Convert to fraction form
    8,978,922.90/13,470,374.52 = 2,588,676.57/x
  3. Step 3: Cross multiply
    8,978,922.90x = 13,470,374.52 × 2,588,676.57
  4. Step 4: Simplify right side
    8,978,922.90x = 34,870,442,909,048.99
  5. Step 5: Solve for x
    x = 34,870,442,909,048.99/8,978,922.90
  6. Step 6: Final answer
    x = 3,883,588.63

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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.