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Finding the Fourth Proportional to 11,574.33, 17,321.99 and 7,355.45

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Solution

The fourth proportional to 11,574.33, 17,321.99 and 7,355.45 is: 11,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,574.33 : 17,321.99 = 7,355.45 : x
  2. Step 2: Convert to fraction form
    11,574.33/17,321.99 = 7,355.45/x
  3. Step 3: Cross multiply
    11,574.33x = 17,321.99 × 7,355.45
  4. Step 4: Simplify right side
    11,574.33x = 127,410,907.96
  5. Step 5: Solve for x
    x = 127,410,907.96/11,574.33
  6. Step 6: Final answer
    x = 11,008.06

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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.