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Finding the Fourth Proportional to 7,856,364.84, 11,787,425.88 and 3,308,558.47

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Solution

The fourth proportional to 7,856,364.84, 11,787,425.88 and 3,308,558.47 is: 4,964,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856,364.84 : 11,787,425.88 = 3,308,558.47 : x
  2. Step 2: Convert to fraction form
    7,856,364.84/11,787,425.88 = 3,308,558.47/x
  3. Step 3: Cross multiply
    7,856,364.84x = 11,787,425.88 × 3,308,558.47
  4. Step 4: Simplify right side
    7,856,364.84x = 38,999,387,734,771.21
  5. Step 5: Solve for x
    x = 38,999,387,734,771.21/7,856,364.84
  6. Step 6: Final answer
    x = 4,964,049.98

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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.