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Finding the Fourth Proportional to 4,799.60, 7,199.64 and 1,336.88

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Solution

The fourth proportional to 4,799.60, 7,199.64 and 1,336.88 is: 2,005.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.60 : 7,199.64 = 1,336.88 : x
  2. Step 2: Convert to fraction form
    4,799.60/7,199.64 = 1,336.88/x
  3. Step 3: Cross multiply
    4,799.60x = 7,199.64 × 1,336.88
  4. Step 4: Simplify right side
    4,799.60x = 9,625,054.72
  5. Step 5: Solve for x
    x = 9,625,054.72/4,799.60
  6. Step 6: Final answer
    x = 2,005.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.