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Finding the Fourth Proportional to 2,516.94, 3,776.81 and 874.67

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Solution

The fourth proportional to 2,516.94, 3,776.81 and 874.67 is: 1,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.94 : 3,776.81 = 874.67 : x
  2. Step 2: Convert to fraction form
    2,516.94/3,776.81 = 874.67/x
  3. Step 3: Cross multiply
    2,516.94x = 3,776.81 × 874.67
  4. Step 4: Simplify right side
    2,516.94x = 3,303,439.15
  5. Step 5: Solve for x
    x = 3,303,439.15/2,516.94
  6. Step 6: Final answer
    x = 1,312.48

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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.