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Finding the Fourth Proportional to 8,530,485.63, 12,795,728.49 and 2,850,709.95

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Solution

The fourth proportional to 8,530,485.63, 12,795,728.49 and 2,850,709.95 is: 4,276,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530,485.63 : 12,795,728.49 = 2,850,709.95 : x
  2. Step 2: Convert to fraction form
    8,530,485.63/12,795,728.49 = 2,850,709.95/x
  3. Step 3: Cross multiply
    8,530,485.63x = 12,795,728.49 × 2,850,709.95
  4. Step 4: Simplify right side
    8,530,485.63x = 36,476,910,523,941.48
  5. Step 5: Solve for x
    x = 36,476,910,523,941.48/8,530,485.63
  6. Step 6: Final answer
    x = 4,276,064.94

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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.