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Finding the Fourth Proportional to 3,715.99, 5,574.52 and 1,983.67

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Solution

The fourth proportional to 3,715.99, 5,574.52 and 1,983.67 is: 2,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.99 : 5,574.52 = 1,983.67 : x
  2. Step 2: Convert to fraction form
    3,715.99/5,574.52 = 1,983.67/x
  3. Step 3: Cross multiply
    3,715.99x = 5,574.52 × 1,983.67
  4. Step 4: Simplify right side
    3,715.99x = 11,057,975.26
  5. Step 5: Solve for x
    x = 11,057,975.26/3,715.99
  6. Step 6: Final answer
    x = 2,975.79

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Double scale
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Similar ratio
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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.