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Finding the Fourth Proportional to 18,745.59, 28,109.07 and 5,594.43

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Solution

The fourth proportional to 18,745.59, 28,109.07 and 5,594.43 is: 8,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.59 : 28,109.07 = 5,594.43 : x
  2. Step 2: Convert to fraction form
    18,745.59/28,109.07 = 5,594.43/x
  3. Step 3: Cross multiply
    18,745.59x = 28,109.07 × 5,594.43
  4. Step 4: Simplify right side
    18,745.59x = 157,254,224.48
  5. Step 5: Solve for x
    x = 157,254,224.48/18,745.59
  6. Step 6: Final answer
    x = 8,388.87

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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.