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Finding the Fourth Proportional to 2,812.92, 3,883.05 and 1,933.26

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Solution

The fourth proportional to 2,812.92, 3,883.05 and 1,933.26 is: 2,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.92 : 3,883.05 = 1,933.26 : x
  2. Step 2: Convert to fraction form
    2,812.92/3,883.05 = 1,933.26/x
  3. Step 3: Cross multiply
    2,812.92x = 3,883.05 × 1,933.26
  4. Step 4: Simplify right side
    2,812.92x = 7,506,945.24
  5. Step 5: Solve for x
    x = 7,506,945.24/2,812.92
  6. Step 6: Final answer
    x = 2,668.74

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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.