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Finding the Fourth Proportional to 58,540.92, 80,786.46 and 31,683.63

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Solution

The fourth proportional to 58,540.92, 80,786.46 and 31,683.63 is: 43,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,540.92 : 80,786.46 = 31,683.63 : x
  2. Step 2: Convert to fraction form
    58,540.92/80,786.46 = 31,683.63/x
  3. Step 3: Cross multiply
    58,540.92x = 80,786.46 × 31,683.63
  4. Step 4: Simplify right side
    58,540.92x = 2,559,608,307.65
  5. Step 5: Solve for x
    x = 2,559,608,307.65/58,540.92
  6. Step 6: Final answer
    x = 43,723.40

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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.