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Finding the Fourth Proportional to 49,892.94, 68,864.08 and 28,684.52

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Solution

The fourth proportional to 49,892.94, 68,864.08 and 28,684.52 is: 39,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,892.94 : 68,864.08 = 28,684.52 : x
  2. Step 2: Convert to fraction form
    49,892.94/68,864.08 = 28,684.52/x
  3. Step 3: Cross multiply
    49,892.94x = 68,864.08 × 28,684.52
  4. Step 4: Simplify right side
    49,892.94x = 1,975,333,080.04
  5. Step 5: Solve for x
    x = 1,975,333,080.04/49,892.94
  6. Step 6: Final answer
    x = 39,591.43

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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.