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Finding the Fourth Proportional to 7,984,533.45, 11,978,900.91 and 4,146,610.89

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Solution

The fourth proportional to 7,984,533.45, 11,978,900.91 and 4,146,610.89 is: 6,221,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984,533.45 : 11,978,900.91 = 4,146,610.89 : x
  2. Step 2: Convert to fraction form
    7,984,533.45/11,978,900.91 = 4,146,610.89/x
  3. Step 3: Cross multiply
    7,984,533.45x = 11,978,900.91 × 4,146,610.89
  4. Step 4: Simplify right side
    7,984,533.45x = 49,671,840,963,636.91
  5. Step 5: Solve for x
    x = 49,671,840,963,636.91/7,984,533.45
  6. Step 6: Final answer
    x = 6,221,007.31

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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.