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Finding the Fourth Proportional to 3,133.69, 4,700.53 and 942.42

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Solution

The fourth proportional to 3,133.69, 4,700.53 and 942.42 is: 1,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.69 : 4,700.53 = 942.42 : x
  2. Step 2: Convert to fraction form
    3,133.69/4,700.53 = 942.42/x
  3. Step 3: Cross multiply
    3,133.69x = 4,700.53 × 942.42
  4. Step 4: Simplify right side
    3,133.69x = 4,429,865.85
  5. Step 5: Solve for x
    x = 4,429,865.85/3,133.69
  6. Step 6: Final answer
    x = 1,413.63

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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.