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Finding the Fourth Proportional to 6,589,309.95, 9,890,340.62 and 3,179,996.51

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Solution

The fourth proportional to 6,589,309.95, 9,890,340.62 and 3,179,996.51 is: 4,773,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,589,309.95 : 9,890,340.62 = 3,179,996.51 : x
  2. Step 2: Convert to fraction form
    6,589,309.95/9,890,340.62 = 3,179,996.51/x
  3. Step 3: Cross multiply
    6,589,309.95x = 9,890,340.62 × 3,179,996.51
  4. Step 4: Simplify right side
    6,589,309.95x = 31,451,248,588,959.55
  5. Step 5: Solve for x
    x = 31,451,248,588,959.55/6,589,309.95
  6. Step 6: Final answer
    x = 4,773,071.66

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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.