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Finding the Fourth Proportional to 5,574.72, 8,360.52 and 1,678.56

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Solution

The fourth proportional to 5,574.72, 8,360.52 and 1,678.56 is: 2,517.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.72 : 8,360.52 = 1,678.56 : x
  2. Step 2: Convert to fraction form
    5,574.72/8,360.52 = 1,678.56/x
  3. Step 3: Cross multiply
    5,574.72x = 8,360.52 × 1,678.56
  4. Step 4: Simplify right side
    5,574.72x = 14,033,634.45
  5. Step 5: Solve for x
    x = 14,033,634.45/5,574.72
  6. Step 6: Final answer
    x = 2,517.37

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1.5x scale

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.