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Finding the Fourth Proportional to 28,409.94, 39,201.03 and 16,468.38

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Solution

The fourth proportional to 28,409.94, 39,201.03 and 16,468.38 is: 22,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.94 : 39,201.03 = 16,468.38 : x
  2. Step 2: Convert to fraction form
    28,409.94/39,201.03 = 16,468.38/x
  3. Step 3: Cross multiply
    28,409.94x = 39,201.03 × 16,468.38
  4. Step 4: Simplify right side
    28,409.94x = 645,577,458.43
  5. Step 5: Solve for x
    x = 645,577,458.43/28,409.94
  6. Step 6: Final answer
    x = 22,723.65

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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.