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Finding the Fourth Proportional to 6,642,714.90, 9,964,072.35 and 4,375,233.30

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Solution

The fourth proportional to 6,642,714.90, 9,964,072.35 and 4,375,233.30 is: 6,562,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,714.90 : 9,964,072.35 = 4,375,233.30 : x
  2. Step 2: Convert to fraction form
    6,642,714.90/9,964,072.35 = 4,375,233.30/x
  3. Step 3: Cross multiply
    6,642,714.90x = 9,964,072.35 × 4,375,233.30
  4. Step 4: Simplify right side
    6,642,714.90x = 43,595,141,149,329.25
  5. Step 5: Solve for x
    x = 43,595,141,149,329.25/6,642,714.90
  6. Step 6: Final answer
    x = 6,562,849.95

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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.