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Finding the Fourth Proportional to 4,799.75, 7,187.54 and 3,039.42

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Solution

The fourth proportional to 4,799.75, 7,187.54 and 3,039.42 is: 4,551.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.75 : 7,187.54 = 3,039.42 : x
  2. Step 2: Convert to fraction form
    4,799.75/7,187.54 = 3,039.42/x
  3. Step 3: Cross multiply
    4,799.75x = 7,187.54 × 3,039.42
  4. Step 4: Simplify right side
    4,799.75x = 21,845,937.63
  5. Step 5: Solve for x
    x = 21,845,937.63/4,799.75
  6. Step 6: Final answer
    x = 4,551.48

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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.