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Finding the Fourth Proportional to 18,625.52, 27,938.05 and 4,585.73

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Solution

The fourth proportional to 18,625.52, 27,938.05 and 4,585.73 is: 6,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.52 : 27,938.05 = 4,585.73 : x
  2. Step 2: Convert to fraction form
    18,625.52/27,938.05 = 4,585.73/x
  3. Step 3: Cross multiply
    18,625.52x = 27,938.05 × 4,585.73
  4. Step 4: Simplify right side
    18,625.52x = 128,116,202.87
  5. Step 5: Solve for x
    x = 128,116,202.87/18,625.52
  6. Step 6: Final answer
    x = 6,878.53

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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.