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Finding the Fourth Proportional to 31,645.44, 43,672.95 and 17,497.98

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Solution

The fourth proportional to 31,645.44, 43,672.95 and 17,497.98 is: 24,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.44 : 43,672.95 = 17,497.98 : x
  2. Step 2: Convert to fraction form
    31,645.44/43,672.95 = 17,497.98/x
  3. Step 3: Cross multiply
    31,645.44x = 43,672.95 × 17,497.98
  4. Step 4: Simplify right side
    31,645.44x = 764,188,405.64
  5. Step 5: Solve for x
    x = 764,188,405.64/31,645.44
  6. Step 6: Final answer
    x = 24,148.45

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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.