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Finding the Fourth Proportional to 59,896.20, 89,844.30 and 20,447.40

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Solution

The fourth proportional to 59,896.20, 89,844.30 and 20,447.40 is: 30,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,896.20 : 89,844.30 = 20,447.40 : x
  2. Step 2: Convert to fraction form
    59,896.20/89,844.30 = 20,447.40/x
  3. Step 3: Cross multiply
    59,896.20x = 89,844.30 × 20,447.40
  4. Step 4: Simplify right side
    59,896.20x = 1,837,082,339.82
  5. Step 5: Solve for x
    x = 1,837,082,339.82/59,896.20
  6. Step 6: Final answer
    x = 30,671.10

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Double scale
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Similar ratio
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1.5x scale

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.