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Finding the Fourth Proportional to 28,326.92, 42,489.42 and 10,796.12

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Solution

The fourth proportional to 28,326.92, 42,489.42 and 10,796.12 is: 16,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.92 : 42,489.42 = 10,796.12 : x
  2. Step 2: Convert to fraction form
    28,326.92/42,489.42 = 10,796.12/x
  3. Step 3: Cross multiply
    28,326.92x = 42,489.42 × 10,796.12
  4. Step 4: Simplify right side
    28,326.92x = 458,720,877.05
  5. Step 5: Solve for x
    x = 458,720,877.05/28,326.92
  6. Step 6: Final answer
    x = 16,193.81

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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.