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Finding the Fourth Proportional to 36,485.46, 54,728.21 and 8,783.46

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Solution

The fourth proportional to 36,485.46, 54,728.21 and 8,783.46 is: 13,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,485.46 : 54,728.21 = 8,783.46 : x
  2. Step 2: Convert to fraction form
    36,485.46/54,728.21 = 8,783.46/x
  3. Step 3: Cross multiply
    36,485.46x = 54,728.21 × 8,783.46
  4. Step 4: Simplify right side
    36,485.46x = 480,703,043.41
  5. Step 5: Solve for x
    x = 480,703,043.41/36,485.46
  6. Step 6: Final answer
    x = 13,175.19

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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.