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Finding the Fourth Proportional to 982.72, 1,467.04 and 948.52

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Solution

The fourth proportional to 982.72, 1,467.04 and 948.52 is: 1,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.72 : 1,467.04 = 948.52 : x
  2. Step 2: Convert to fraction form
    982.72/1,467.04 = 948.52/x
  3. Step 3: Cross multiply
    982.72x = 1,467.04 × 948.52
  4. Step 4: Simplify right side
    982.72x = 1,391,516.78
  5. Step 5: Solve for x
    x = 1,391,516.78/982.72
  6. Step 6: Final answer
    x = 1,415.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.