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Finding the Fourth Proportional to 31,744.59, 43,807.21 and 17,405.22

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Solution

The fourth proportional to 31,744.59, 43,807.21 and 17,405.22 is: 24,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,744.59 : 43,807.21 = 17,405.22 : x
  2. Step 2: Convert to fraction form
    31,744.59/43,807.21 = 17,405.22/x
  3. Step 3: Cross multiply
    31,744.59x = 43,807.21 × 17,405.22
  4. Step 4: Simplify right side
    31,744.59x = 762,474,127.64
  5. Step 5: Solve for x
    x = 762,474,127.64/31,744.59
  6. Step 6: Final answer
    x = 24,019.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.