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Finding the Fourth Proportional to 73,059.44, 109,576.80 and 20,456.82

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Solution

The fourth proportional to 73,059.44, 109,576.80 and 20,456.82 is: 30,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,059.44 : 109,576.80 = 20,456.82 : x
  2. Step 2: Convert to fraction form
    73,059.44/109,576.80 = 20,456.82/x
  3. Step 3: Cross multiply
    73,059.44x = 109,576.80 × 20,456.82
  4. Step 4: Simplify right side
    73,059.44x = 2,241,592,873.78
  5. Step 5: Solve for x
    x = 2,241,592,873.78/73,059.44
  6. Step 6: Final answer
    x = 30,681.77

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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.