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Finding the Fourth Proportional to 6,321,651.88, 8,723,901.17 and 3,421,041.98

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Solution

The fourth proportional to 6,321,651.88, 8,723,901.17 and 3,421,041.98 is: 4,721,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321,651.88 : 8,723,901.17 = 3,421,041.98 : x
  2. Step 2: Convert to fraction form
    6,321,651.88/8,723,901.17 = 3,421,041.98/x
  3. Step 3: Cross multiply
    6,321,651.88x = 8,723,901.17 × 3,421,041.98
  4. Step 4: Simplify right side
    6,321,651.88x = 29,844,832,114,835.90
  5. Step 5: Solve for x
    x = 29,844,832,114,835.90/6,321,651.88
  6. Step 6: Final answer
    x = 4,721,049.61

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Why These Related Problems?

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