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Finding the Fourth Proportional to 6,774,836.22, 9,349,234.11 and 3,677,421.06

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Solution

The fourth proportional to 6,774,836.22, 9,349,234.11 and 3,677,421.06 is: 5,074,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774,836.22 : 9,349,234.11 = 3,677,421.06 : x
  2. Step 2: Convert to fraction form
    6,774,836.22/9,349,234.11 = 3,677,421.06/x
  3. Step 3: Cross multiply
    6,774,836.22x = 9,349,234.11 × 3,677,421.06
  4. Step 4: Simplify right side
    6,774,836.22x = 34,381,070,410,984.36
  5. Step 5: Solve for x
    x = 34,381,070,410,984.36/6,774,836.22
  6. Step 6: Final answer
    x = 5,074,819.42

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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.