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Finding the Fourth Proportional to 3,995.92, 5,513.53 and 2,316.49

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Solution

The fourth proportional to 3,995.92, 5,513.53 and 2,316.49 is: 3,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.92 : 5,513.53 = 2,316.49 : x
  2. Step 2: Convert to fraction form
    3,995.92/5,513.53 = 2,316.49/x
  3. Step 3: Cross multiply
    3,995.92x = 5,513.53 × 2,316.49
  4. Step 4: Simplify right side
    3,995.92x = 12,772,037.11
  5. Step 5: Solve for x
    x = 12,772,037.11/3,995.92
  6. Step 6: Final answer
    x = 3,196.27

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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.