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Finding the Fourth Proportional to 11,908,978.81, 17,864,533.80 and 4,622,267.74

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Solution

The fourth proportional to 11,908,978.81, 17,864,533.80 and 4,622,267.74 is: 6,933,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908,978.81 : 17,864,533.80 = 4,622,267.74 : x
  2. Step 2: Convert to fraction form
    11,908,978.81/17,864,533.80 = 4,622,267.74/x
  3. Step 3: Cross multiply
    11,908,978.81x = 17,864,533.80 × 4,622,267.74
  4. Step 4: Simplify right side
    11,908,978.81x = 82,574,658,273,879.62
  5. Step 5: Solve for x
    x = 82,574,658,273,879.62/11,908,978.81
  6. Step 6: Final answer
    x = 6,933,815.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.