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Finding the Fourth Proportional to 9,914.68, 14,872.02 and 4,076.20

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Solution

The fourth proportional to 9,914.68, 14,872.02 and 4,076.20 is: 6,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,914.68 : 14,872.02 = 4,076.20 : x
  2. Step 2: Convert to fraction form
    9,914.68/14,872.02 = 4,076.20/x
  3. Step 3: Cross multiply
    9,914.68x = 14,872.02 × 4,076.20
  4. Step 4: Simplify right side
    9,914.68x = 60,621,327.92
  5. Step 5: Solve for x
    x = 60,621,327.92/9,914.68
  6. Step 6: Final answer
    x = 6,114.30

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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.