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Finding the Fourth Proportional to 9,903.73, 13,665.02 and 5,871.83

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Solution

The fourth proportional to 9,903.73, 13,665.02 and 5,871.83 is: 8,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.73 : 13,665.02 = 5,871.83 : x
  2. Step 2: Convert to fraction form
    9,903.73/13,665.02 = 5,871.83/x
  3. Step 3: Cross multiply
    9,903.73x = 13,665.02 × 5,871.83
  4. Step 4: Simplify right side
    9,903.73x = 80,238,576.70
  5. Step 5: Solve for x
    x = 80,238,576.70/9,903.73
  6. Step 6: Final answer
    x = 8,101.86

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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.