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Finding the Fourth Proportional to 9,944.72, 13,719.78 and 6,410

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Solution

The fourth proportional to 9,944.72, 13,719.78 and 6,410 is: 8,843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,944.72 : 13,719.78 = 6,410 : x
  2. Step 2: Convert to fraction form
    9,944.72/13,719.78 = 6,410/x
  3. Step 3: Cross multiply
    9,944.72x = 13,719.78 × 6,410
  4. Step 4: Simplify right side
    9,944.72x = 87,943,789.80
  5. Step 5: Solve for x
    x = 87,943,789.80/9,944.72
  6. Step 6: Final answer
    x = 8,843.26

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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.