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Finding the Fourth Proportional to 8,378.73, 11,562.62 and 4,652.73

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Solution

The fourth proportional to 8,378.73, 11,562.62 and 4,652.73 is: 6,420.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.73 : 11,562.62 = 4,652.73 : x
  2. Step 2: Convert to fraction form
    8,378.73/11,562.62 = 4,652.73/x
  3. Step 3: Cross multiply
    8,378.73x = 11,562.62 × 4,652.73
  4. Step 4: Simplify right side
    8,378.73x = 53,797,725.69
  5. Step 5: Solve for x
    x = 53,797,725.69/8,378.73
  6. Step 6: Final answer
    x = 6,420.75

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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.