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Finding the Fourth Proportional to 5,921.68, 8,892.60 and 5,674

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Solution

The fourth proportional to 5,921.68, 8,892.60 and 5,674 is: 8,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.68 : 8,892.60 = 5,674 : x
  2. Step 2: Convert to fraction form
    5,921.68/8,892.60 = 5,674/x
  3. Step 3: Cross multiply
    5,921.68x = 8,892.60 × 5,674
  4. Step 4: Simplify right side
    5,921.68x = 50,456,612.40
  5. Step 5: Solve for x
    x = 50,456,612.40/5,921.68
  6. Step 6: Final answer
    x = 8,520.66

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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.