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Finding the Fourth Proportional to 30,558.80, 45,846.30 and 10,835.30

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Solution

The fourth proportional to 30,558.80, 45,846.30 and 10,835.30 is: 16,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.80 : 45,846.30 = 10,835.30 : x
  2. Step 2: Convert to fraction form
    30,558.80/45,846.30 = 10,835.30/x
  3. Step 3: Cross multiply
    30,558.80x = 45,846.30 × 10,835.30
  4. Step 4: Simplify right side
    30,558.80x = 496,758,414.39
  5. Step 5: Solve for x
    x = 496,758,414.39/30,558.80
  6. Step 6: Final answer
    x = 16,255.82

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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.