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Finding the Fourth Proportional to 1,873.92, 2,811.04 and 1,052.16

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Solution

The fourth proportional to 1,873.92, 2,811.04 and 1,052.16 is: 1,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.92 : 2,811.04 = 1,052.16 : x
  2. Step 2: Convert to fraction form
    1,873.92/2,811.04 = 1,052.16/x
  3. Step 3: Cross multiply
    1,873.92x = 2,811.04 × 1,052.16
  4. Step 4: Simplify right side
    1,873.92x = 2,957,663.85
  5. Step 5: Solve for x
    x = 2,957,663.85/1,873.92
  6. Step 6: Final answer
    x = 1,578.33

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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.