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Finding the Fourth Proportional to 11,809.32, 17,672.36 and 7,369.08

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Solution

The fourth proportional to 11,809.32, 17,672.36 and 7,369.08 is: 11,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.32 : 17,672.36 = 7,369.08 : x
  2. Step 2: Convert to fraction form
    11,809.32/17,672.36 = 7,369.08/x
  3. Step 3: Cross multiply
    11,809.32x = 17,672.36 × 7,369.08
  4. Step 4: Simplify right side
    11,809.32x = 130,229,055.60
  5. Step 5: Solve for x
    x = 130,229,055.60/11,809.32
  6. Step 6: Final answer
    x = 11,027.65

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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.