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Finding the Fourth Proportional to 32,991.60, 49,422.60 and 30,658.80

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Solution

The fourth proportional to 32,991.60, 49,422.60 and 30,658.80 is: 45,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.60 : 49,422.60 = 30,658.80 : x
  2. Step 2: Convert to fraction form
    32,991.60/49,422.60 = 30,658.80/x
  3. Step 3: Cross multiply
    32,991.60x = 49,422.60 × 30,658.80
  4. Step 4: Simplify right side
    32,991.60x = 1,515,237,608.88
  5. Step 5: Solve for x
    x = 1,515,237,608.88/32,991.60
  6. Step 6: Final answer
    x = 45,927.98

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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.