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Finding the Fourth Proportional to 3,422.94, 5,155.17 and 3,037.74

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Solution

The fourth proportional to 3,422.94, 5,155.17 and 3,037.74 is: 4,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.94 : 5,155.17 = 3,037.74 : x
  2. Step 2: Convert to fraction form
    3,422.94/5,155.17 = 3,037.74/x
  3. Step 3: Cross multiply
    3,422.94x = 5,155.17 × 3,037.74
  4. Step 4: Simplify right side
    3,422.94x = 15,660,066.12
  5. Step 5: Solve for x
    x = 15,660,066.12/3,422.94
  6. Step 6: Final answer
    x = 4,575.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.