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Finding the Fourth Proportional to 17,192.80, 25,782.80 and 4,876.64

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Solution

The fourth proportional to 17,192.80, 25,782.80 and 4,876.64 is: 7,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,192.80 : 25,782.80 = 4,876.64 : x
  2. Step 2: Convert to fraction form
    17,192.80/25,782.80 = 4,876.64/x
  3. Step 3: Cross multiply
    17,192.80x = 25,782.80 × 4,876.64
  4. Step 4: Simplify right side
    17,192.80x = 125,733,433.79
  5. Step 5: Solve for x
    x = 125,733,433.79/17,192.80
  6. Step 6: Final answer
    x = 7,313.14

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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.