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Finding the Fourth Proportional to 9,914.60, 13,682.12 and 6,137.02

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Solution

The fourth proportional to 9,914.60, 13,682.12 and 6,137.02 is: 8,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,914.60 : 13,682.12 = 6,137.02 : x
  2. Step 2: Convert to fraction form
    9,914.60/13,682.12 = 6,137.02/x
  3. Step 3: Cross multiply
    9,914.60x = 13,682.12 × 6,137.02
  4. Step 4: Simplify right side
    9,914.60x = 83,967,353.54
  5. Step 5: Solve for x
    x = 83,967,353.54/9,914.60
  6. Step 6: Final answer
    x = 8,469.06

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1.5x scale

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.