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Finding the Fourth Proportional to 40,936.80, 61,431.04 and 23,440.80

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Solution

The fourth proportional to 40,936.80, 61,431.04 and 23,440.80 is: 35,176.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,936.80 : 61,431.04 = 23,440.80 : x
  2. Step 2: Convert to fraction form
    40,936.80/61,431.04 = 23,440.80/x
  3. Step 3: Cross multiply
    40,936.80x = 61,431.04 × 23,440.80
  4. Step 4: Simplify right side
    40,936.80x = 1,439,992,722.43
  5. Step 5: Solve for x
    x = 1,439,992,722.43/40,936.80
  6. Step 6: Final answer
    x = 35,176.00

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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.