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Finding the Fourth Proportional to 3,699.70, 5,550.63 and 1,724.92

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Solution

The fourth proportional to 3,699.70, 5,550.63 and 1,724.92 is: 2,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.70 : 5,550.63 = 1,724.92 : x
  2. Step 2: Convert to fraction form
    3,699.70/5,550.63 = 1,724.92/x
  3. Step 3: Cross multiply
    3,699.70x = 5,550.63 × 1,724.92
  4. Step 4: Simplify right side
    3,699.70x = 9,574,392.70
  5. Step 5: Solve for x
    x = 9,574,392.70/3,699.70
  6. Step 6: Final answer
    x = 2,587.88

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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.