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Finding the Fourth Proportional to 79,508.93, 119,189.21 and 26,881.61

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Solution

The fourth proportional to 79,508.93, 119,189.21 and 26,881.61 is: 40,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,508.93 : 119,189.21 = 26,881.61 : x
  2. Step 2: Convert to fraction form
    79,508.93/119,189.21 = 26,881.61/x
  3. Step 3: Cross multiply
    79,508.93x = 119,189.21 × 26,881.61
  4. Step 4: Simplify right side
    79,508.93x = 3,203,997,129.07
  5. Step 5: Solve for x
    x = 3,203,997,129.07/79,508.93
  6. Step 6: Final answer
    x = 40,297.33

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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.