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Finding the Fourth Proportional to 58,587.60, 80,850.49 and 31,729.49

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Solution

The fourth proportional to 58,587.60, 80,850.49 and 31,729.49 is: 43,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,587.60 : 80,850.49 = 31,729.49 : x
  2. Step 2: Convert to fraction form
    58,587.60/80,850.49 = 31,729.49/x
  3. Step 3: Cross multiply
    58,587.60x = 80,850.49 × 31,729.49
  4. Step 4: Simplify right side
    58,587.60x = 2,565,344,633.56
  5. Step 5: Solve for x
    x = 2,565,344,633.56/58,587.60
  6. Step 6: Final answer
    x = 43,786.47

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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.