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Finding the Fourth Proportional to 8,976.75, 12,388.75 and 4,998.46

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Solution

The fourth proportional to 8,976.75, 12,388.75 and 4,998.46 is: 6,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.75 : 12,388.75 = 4,998.46 : x
  2. Step 2: Convert to fraction form
    8,976.75/12,388.75 = 4,998.46/x
  3. Step 3: Cross multiply
    8,976.75x = 12,388.75 × 4,998.46
  4. Step 4: Simplify right side
    8,976.75x = 61,924,651.09
  5. Step 5: Solve for x
    x = 61,924,651.09/8,976.75
  6. Step 6: Final answer
    x = 6,898.34

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1.5x scale

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.