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Finding the Fourth Proportional to 3,570.92, 5,356.74 and 1,230.61

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Solution

The fourth proportional to 3,570.92, 5,356.74 and 1,230.61 is: 1,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.92 : 5,356.74 = 1,230.61 : x
  2. Step 2: Convert to fraction form
    3,570.92/5,356.74 = 1,230.61/x
  3. Step 3: Cross multiply
    3,570.92x = 5,356.74 × 1,230.61
  4. Step 4: Simplify right side
    3,570.92x = 6,592,057.81
  5. Step 5: Solve for x
    x = 6,592,057.81/3,570.92
  6. Step 6: Final answer
    x = 1,846.04

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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.