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Finding the Fourth Proportional to 35,179.80, 52,774.26 and 11,479

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Solution

The fourth proportional to 35,179.80, 52,774.26 and 11,479 is: 17,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,179.80 : 52,774.26 = 11,479 : x
  2. Step 2: Convert to fraction form
    35,179.80/52,774.26 = 11,479/x
  3. Step 3: Cross multiply
    35,179.80x = 52,774.26 × 11,479
  4. Step 4: Simplify right side
    35,179.80x = 605,795,730.54
  5. Step 5: Solve for x
    x = 605,795,730.54/35,179.80
  6. Step 6: Final answer
    x = 17,219.99

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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.