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Finding the Fourth Proportional to 3,560.81, 4,913.80 and 1,967.37

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Solution

The fourth proportional to 3,560.81, 4,913.80 and 1,967.37 is: 2,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.81 : 4,913.80 = 1,967.37 : x
  2. Step 2: Convert to fraction form
    3,560.81/4,913.80 = 1,967.37/x
  3. Step 3: Cross multiply
    3,560.81x = 4,913.80 × 1,967.37
  4. Step 4: Simplify right side
    3,560.81x = 9,667,228.30
  5. Step 5: Solve for x
    x = 9,667,228.30/3,560.81
  6. Step 6: Final answer
    x = 2,714.90

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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.