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Finding the Fourth Proportional to 3,859.94, 5,326.82 and 2,368.68

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Solution

The fourth proportional to 3,859.94, 5,326.82 and 2,368.68 is: 3,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.94 : 5,326.82 = 2,368.68 : x
  2. Step 2: Convert to fraction form
    3,859.94/5,326.82 = 2,368.68/x
  3. Step 3: Cross multiply
    3,859.94x = 5,326.82 × 2,368.68
  4. Step 4: Simplify right side
    3,859.94x = 12,617,520.15
  5. Step 5: Solve for x
    x = 12,617,520.15/3,859.94
  6. Step 6: Final answer
    x = 3,268.84

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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.