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Finding the Fourth Proportional to 17,108.80, 25,663.20 and 4,795.20

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Solution

The fourth proportional to 17,108.80, 25,663.20 and 4,795.20 is: 7,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.80 : 25,663.20 = 4,795.20 : x
  2. Step 2: Convert to fraction form
    17,108.80/25,663.20 = 4,795.20/x
  3. Step 3: Cross multiply
    17,108.80x = 25,663.20 × 4,795.20
  4. Step 4: Simplify right side
    17,108.80x = 123,060,176.64
  5. Step 5: Solve for x
    x = 123,060,176.64/17,108.80
  6. Step 6: Final answer
    x = 7,192.80

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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.