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Finding the Fourth Proportional to 3,048.92, 4,207.62 and 1,722.63

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Solution

The fourth proportional to 3,048.92, 4,207.62 and 1,722.63 is: 2,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.92 : 4,207.62 = 1,722.63 : x
  2. Step 2: Convert to fraction form
    3,048.92/4,207.62 = 1,722.63/x
  3. Step 3: Cross multiply
    3,048.92x = 4,207.62 × 1,722.63
  4. Step 4: Simplify right side
    3,048.92x = 7,248,172.44
  5. Step 5: Solve for x
    x = 7,248,172.44/3,048.92
  6. Step 6: Final answer
    x = 2,377.30

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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.