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Finding the Fourth Proportional to 3,486.74, 4,811.83 and 2,494.40

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Solution

The fourth proportional to 3,486.74, 4,811.83 and 2,494.40 is: 3,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.74 : 4,811.83 = 2,494.40 : x
  2. Step 2: Convert to fraction form
    3,486.74/4,811.83 = 2,494.40/x
  3. Step 3: Cross multiply
    3,486.74x = 4,811.83 × 2,494.40
  4. Step 4: Simplify right side
    3,486.74x = 12,002,598.46
  5. Step 5: Solve for x
    x = 12,002,598.46/3,486.74
  6. Step 6: Final answer
    x = 3,442.36

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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.