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Finding the Fourth Proportional to 18,589,978.12, 25,656,575.46 and 10,441,215.88

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Solution

The fourth proportional to 18,589,978.12, 25,656,575.46 and 10,441,215.88 is: 14,410,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589,978.12 : 25,656,575.46 = 10,441,215.88 : x
  2. Step 2: Convert to fraction form
    18,589,978.12/25,656,575.46 = 10,441,215.88/x
  3. Step 3: Cross multiply
    18,589,978.12x = 25,656,575.46 × 10,441,215.88
  4. Step 4: Simplify right side
    18,589,978.12x = 267,885,843,119,370.34
  5. Step 5: Solve for x
    x = 267,885,843,119,370.34/18,589,978.12
  6. Step 6: Final answer
    x = 14,410,229.07

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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.