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Finding the Fourth Proportional to 3,057.93, 4,219.74 and 1,731.51

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Solution

The fourth proportional to 3,057.93, 4,219.74 and 1,731.51 is: 2,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.93 : 4,219.74 = 1,731.51 : x
  2. Step 2: Convert to fraction form
    3,057.93/4,219.74 = 1,731.51/x
  3. Step 3: Cross multiply
    3,057.93x = 4,219.74 × 1,731.51
  4. Step 4: Simplify right side
    3,057.93x = 7,306,522.01
  5. Step 5: Solve for x
    x = 7,306,522.01/3,057.93
  6. Step 6: Final answer
    x = 2,389.37

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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.