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Finding the Fourth Proportional to 6,442,842.06, 9,664,321.29 and 1,955,118.06

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Solution

The fourth proportional to 6,442,842.06, 9,664,321.29 and 1,955,118.06 is: 2,932,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442,842.06 : 9,664,321.29 = 1,955,118.06 : x
  2. Step 2: Convert to fraction form
    6,442,842.06/9,664,321.29 = 1,955,118.06/x
  3. Step 3: Cross multiply
    6,442,842.06x = 9,664,321.29 × 1,955,118.06
  4. Step 4: Simplify right side
    6,442,842.06x = 18,894,889,091,721.50
  5. Step 5: Solve for x
    x = 18,894,889,091,721.50/6,442,842.06
  6. Step 6: Final answer
    x = 2,932,694.75

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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.