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Finding the Fourth Proportional to 7,892.38, 10,893.96 and 4,708

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Solution

The fourth proportional to 7,892.38, 10,893.96 and 4,708 is: 6,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.38 : 10,893.96 = 4,708 : x
  2. Step 2: Convert to fraction form
    7,892.38/10,893.96 = 4,708/x
  3. Step 3: Cross multiply
    7,892.38x = 10,893.96 × 4,708
  4. Step 4: Simplify right side
    7,892.38x = 51,288,763.68
  5. Step 5: Solve for x
    x = 51,288,763.68/7,892.38
  6. Step 6: Final answer
    x = 6,498.52

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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.