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Finding the Fourth Proportional to 4,799.97, 7,212.12 and 4,605.57

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Solution

The fourth proportional to 4,799.97, 7,212.12 and 4,605.57 is: 6,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.97 : 7,212.12 = 4,605.57 : x
  2. Step 2: Convert to fraction form
    4,799.97/7,212.12 = 4,605.57/x
  3. Step 3: Cross multiply
    4,799.97x = 7,212.12 × 4,605.57
  4. Step 4: Simplify right side
    4,799.97x = 33,215,923.51
  5. Step 5: Solve for x
    x = 33,215,923.51/4,799.97
  6. Step 6: Final answer
    x = 6,920.03

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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.