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Finding the Fourth Proportional to 11,809.70, 17,699.04 and 5,561.24

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Solution

The fourth proportional to 11,809.70, 17,699.04 and 5,561.24 is: 8,334.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.70 : 17,699.04 = 5,561.24 : x
  2. Step 2: Convert to fraction form
    11,809.70/17,699.04 = 5,561.24/x
  3. Step 3: Cross multiply
    11,809.70x = 17,699.04 × 5,561.24
  4. Step 4: Simplify right side
    11,809.70x = 98,428,609.21
  5. Step 5: Solve for x
    x = 98,428,609.21/11,809.70
  6. Step 6: Final answer
    x = 8,334.56

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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.