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Finding the Fourth Proportional to 6,470.37, 8,907.09 and 4,788.61

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Solution

The fourth proportional to 6,470.37, 8,907.09 and 4,788.61 is: 6,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.37 : 8,907.09 = 4,788.61 : x
  2. Step 2: Convert to fraction form
    6,470.37/8,907.09 = 4,788.61/x
  3. Step 3: Cross multiply
    6,470.37x = 8,907.09 × 4,788.61
  4. Step 4: Simplify right side
    6,470.37x = 42,652,540.02
  5. Step 5: Solve for x
    x = 42,652,540.02/6,470.37
  6. Step 6: Final answer
    x = 6,591.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.