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Finding the Fourth Proportional to 3,995.68, 5,513.64 and 2,423.68

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Solution

The fourth proportional to 3,995.68, 5,513.64 and 2,423.68 is: 3,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.68 : 5,513.64 = 2,423.68 : x
  2. Step 2: Convert to fraction form
    3,995.68/5,513.64 = 2,423.68/x
  3. Step 3: Cross multiply
    3,995.68x = 5,513.64 × 2,423.68
  4. Step 4: Simplify right side
    3,995.68x = 13,363,299.00
  5. Step 5: Solve for x
    x = 13,363,299.00/3,995.68
  6. Step 6: Final answer
    x = 3,344.44

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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.