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Finding the Fourth Proportional to 7,992,964.63, 11,987,638.71 and 3,670,859.71

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Solution

The fourth proportional to 7,992,964.63, 11,987,638.71 and 3,670,859.71 is: 5,505,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992,964.63 : 11,987,638.71 = 3,670,859.71 : x
  2. Step 2: Convert to fraction form
    7,992,964.63/11,987,638.71 = 3,670,859.71/x
  3. Step 3: Cross multiply
    7,992,964.63x = 11,987,638.71 × 3,670,859.71
  4. Step 4: Simplify right side
    7,992,964.63x = 44,004,939,892,363.73
  5. Step 5: Solve for x
    x = 44,004,939,892,363.73/7,992,964.63
  6. Step 6: Final answer
    x = 5,505,459.11

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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.