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Finding the Fourth Proportional to 8,378.73, 12,572.19 and 5,929.29

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Solution

The fourth proportional to 8,378.73, 12,572.19 and 5,929.29 is: 8,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.73 : 12,572.19 = 5,929.29 : x
  2. Step 2: Convert to fraction form
    8,378.73/12,572.19 = 5,929.29/x
  3. Step 3: Cross multiply
    8,378.73x = 12,572.19 × 5,929.29
  4. Step 4: Simplify right side
    8,378.73x = 74,544,160.45
  5. Step 5: Solve for x
    x = 74,544,160.45/8,378.73
  6. Step 6: Final answer
    x = 8,896.83

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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.