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Finding the Fourth Proportional to 2,182.99, 3,274.49 and 1,322.77

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Solution

The fourth proportional to 2,182.99, 3,274.49 and 1,322.77 is: 1,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.99 : 3,274.49 = 1,322.77 : x
  2. Step 2: Convert to fraction form
    2,182.99/3,274.49 = 1,322.77/x
  3. Step 3: Cross multiply
    2,182.99x = 3,274.49 × 1,322.77
  4. Step 4: Simplify right side
    2,182.99x = 4,331,397.14
  5. Step 5: Solve for x
    x = 4,331,397.14/2,182.99
  6. Step 6: Final answer
    x = 1,984.16

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Double scale
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Similar ratio
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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.