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Finding the Fourth Proportional to 28,993.86, 43,403.22 and 26,221.86

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Solution

The fourth proportional to 28,993.86, 43,403.22 and 26,221.86 is: 39,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.86 : 43,403.22 = 26,221.86 : x
  2. Step 2: Convert to fraction form
    28,993.86/43,403.22 = 26,221.86/x
  3. Step 3: Cross multiply
    28,993.86x = 43,403.22 × 26,221.86
  4. Step 4: Simplify right side
    28,993.86x = 1,138,113,158.39
  5. Step 5: Solve for x
    x = 1,138,113,158.39/28,993.86
  6. Step 6: Final answer
    x = 39,253.59

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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.