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Finding the Fourth Proportional to 7,625.60, 10,523.84 and 4,268.72

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Solution

The fourth proportional to 7,625.60, 10,523.84 and 4,268.72 is: 5,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.60 : 10,523.84 = 4,268.72 : x
  2. Step 2: Convert to fraction form
    7,625.60/10,523.84 = 4,268.72/x
  3. Step 3: Cross multiply
    7,625.60x = 10,523.84 × 4,268.72
  4. Step 4: Simplify right side
    7,625.60x = 44,923,326.28
  5. Step 5: Solve for x
    x = 44,923,326.28/7,625.60
  6. Step 6: Final answer
    x = 5,891.12

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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.