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Finding the Fourth Proportional to 8,978,582.86, 13,467,874.44 and 2,155,156.04

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Solution

The fourth proportional to 8,978,582.86, 13,467,874.44 and 2,155,156.04 is: 3,232,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,582.86 : 13,467,874.44 = 2,155,156.04 : x
  2. Step 2: Convert to fraction form
    8,978,582.86/13,467,874.44 = 2,155,156.04/x
  3. Step 3: Cross multiply
    8,978,582.86x = 13,467,874.44 × 2,155,156.04
  4. Step 4: Simplify right side
    8,978,582.86x = 29,025,370,945,327.62
  5. Step 5: Solve for x
    x = 29,025,370,945,327.62/8,978,582.86
  6. Step 6: Final answer
    x = 3,232,734.10

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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.