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Finding the Fourth Proportional to 3,357.56, 4,633.63 and 1,865.64

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Solution

The fourth proportional to 3,357.56, 4,633.63 and 1,865.64 is: 2,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.56 : 4,633.63 = 1,865.64 : x
  2. Step 2: Convert to fraction form
    3,357.56/4,633.63 = 1,865.64/x
  3. Step 3: Cross multiply
    3,357.56x = 4,633.63 × 1,865.64
  4. Step 4: Simplify right side
    3,357.56x = 8,644,685.47
  5. Step 5: Solve for x
    x = 8,644,685.47/3,357.56
  6. Step 6: Final answer
    x = 2,574.69

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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.