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Finding the Fourth Proportional to 58,640.61, 80,919.97 and 33,148.23

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Solution

The fourth proportional to 58,640.61, 80,919.97 and 33,148.23 is: 45,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,640.61 : 80,919.97 = 33,148.23 : x
  2. Step 2: Convert to fraction form
    58,640.61/80,919.97 = 33,148.23/x
  3. Step 3: Cross multiply
    58,640.61x = 80,919.97 × 33,148.23
  4. Step 4: Simplify right side
    58,640.61x = 2,682,353,777.15
  5. Step 5: Solve for x
    x = 2,682,353,777.15/58,640.61
  6. Step 6: Final answer
    x = 45,742.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.