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Finding the Fourth Proportional to 18,169.41, 25,045.25 and 16,643.98

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Solution

The fourth proportional to 18,169.41, 25,045.25 and 16,643.98 is: 22,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.41 : 25,045.25 = 16,643.98 : x
  2. Step 2: Convert to fraction form
    18,169.41/25,045.25 = 16,643.98/x
  3. Step 3: Cross multiply
    18,169.41x = 25,045.25 × 16,643.98
  4. Step 4: Simplify right side
    18,169.41x = 416,852,681.80
  5. Step 5: Solve for x
    x = 416,852,681.80/18,169.41
  6. Step 6: Final answer
    x = 22,942.55

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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.