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Finding the Fourth Proportional to 9,992.44, 13,789.21 and 5,516.10

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Solution

The fourth proportional to 9,992.44, 13,789.21 and 5,516.10 is: 7,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.44 : 13,789.21 = 5,516.10 : x
  2. Step 2: Convert to fraction form
    9,992.44/13,789.21 = 5,516.10/x
  3. Step 3: Cross multiply
    9,992.44x = 13,789.21 × 5,516.10
  4. Step 4: Simplify right side
    9,992.44x = 76,062,579.41
  5. Step 5: Solve for x
    x = 76,062,579.41/9,992.44
  6. Step 6: Final answer
    x = 7,612.01

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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.