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Finding the Fourth Proportional to 18,733.33, 28,108.10 and 8,879.59

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Solution

The fourth proportional to 18,733.33, 28,108.10 and 8,879.59 is: 13,323.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.33 : 28,108.10 = 8,879.59 : x
  2. Step 2: Convert to fraction form
    18,733.33/28,108.10 = 8,879.59/x
  3. Step 3: Cross multiply
    18,733.33x = 28,108.10 × 8,879.59
  4. Step 4: Simplify right side
    18,733.33x = 249,588,403.68
  5. Step 5: Solve for x
    x = 249,588,403.68/18,733.33
  6. Step 6: Final answer
    x = 13,323.23

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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.