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Finding the Fourth Proportional to 3,959.56, 5,944.20 and 2,316.88

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Solution

The fourth proportional to 3,959.56, 5,944.20 and 2,316.88 is: 3,478.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.56 : 5,944.20 = 2,316.88 : x
  2. Step 2: Convert to fraction form
    3,959.56/5,944.20 = 2,316.88/x
  3. Step 3: Cross multiply
    3,959.56x = 5,944.20 × 2,316.88
  4. Step 4: Simplify right side
    3,959.56x = 13,771,998.10
  5. Step 5: Solve for x
    x = 13,771,998.10/3,959.56
  6. Step 6: Final answer
    x = 3,478.16

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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.