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Finding the Fourth Proportional to 28,268.42, 39,007.49 and 16,335.59

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Solution

The fourth proportional to 28,268.42, 39,007.49 and 16,335.59 is: 22,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.42 : 39,007.49 = 16,335.59 : x
  2. Step 2: Convert to fraction form
    28,268.42/39,007.49 = 16,335.59/x
  3. Step 3: Cross multiply
    28,268.42x = 39,007.49 × 16,335.59
  4. Step 4: Simplify right side
    28,268.42x = 637,210,086.85
  5. Step 5: Solve for x
    x = 637,210,086.85/28,268.42
  6. Step 6: Final answer
    x = 22,541.42

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