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Finding the Fourth Proportional to 22,941,321.86, 31,659,859.47 and 12,486,832.85

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Solution

The fourth proportional to 22,941,321.86, 31,659,859.47 and 12,486,832.85 is: 17,232,283.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,941,321.86 : 31,659,859.47 = 12,486,832.85 : x
  2. Step 2: Convert to fraction form
    22,941,321.86/31,659,859.47 = 12,486,832.85/x
  3. Step 3: Cross multiply
    22,941,321.86x = 31,659,859.47 × 12,486,832.85
  4. Step 4: Simplify right side
    22,941,321.86x = 395,331,373,382,354.81
  5. Step 5: Solve for x
    x = 395,331,373,382,354.81/22,941,321.86
  6. Step 6: Final answer
    x = 17,232,283.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.