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Finding the Fourth Proportional to 36,830.60, 55,245.90 and 31,070.60

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Solution

The fourth proportional to 36,830.60, 55,245.90 and 31,070.60 is: 46,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,830.60 : 55,245.90 = 31,070.60 : x
  2. Step 2: Convert to fraction form
    36,830.60/55,245.90 = 31,070.60/x
  3. Step 3: Cross multiply
    36,830.60x = 55,245.90 × 31,070.60
  4. Step 4: Simplify right side
    36,830.60x = 1,716,523,260.54
  5. Step 5: Solve for x
    x = 1,716,523,260.54/36,830.60
  6. Step 6: Final answer
    x = 46,605.90

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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.