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Finding the Fourth Proportional to 3,339.63, 4,608.70 and 1,923.75

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Solution

The fourth proportional to 3,339.63, 4,608.70 and 1,923.75 is: 2,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.63 : 4,608.70 = 1,923.75 : x
  2. Step 2: Convert to fraction form
    3,339.63/4,608.70 = 1,923.75/x
  3. Step 3: Cross multiply
    3,339.63x = 4,608.70 × 1,923.75
  4. Step 4: Simplify right side
    3,339.63x = 8,865,981.82
  5. Step 5: Solve for x
    x = 8,865,981.82/3,339.63
  6. Step 6: Final answer
    x = 2,654.78

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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.