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Finding the Fourth Proportional to 5,798.46, 7,998.80 and 4,120.54

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Solution

The fourth proportional to 5,798.46, 7,998.80 and 4,120.54 is: 5,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.46 : 7,998.80 = 4,120.54 : x
  2. Step 2: Convert to fraction form
    5,798.46/7,998.80 = 4,120.54/x
  3. Step 3: Cross multiply
    5,798.46x = 7,998.80 × 4,120.54
  4. Step 4: Simplify right side
    5,798.46x = 32,959,375.35
  5. Step 5: Solve for x
    x = 32,959,375.35/5,798.46
  6. Step 6: Final answer
    x = 5,684.17

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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.