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Finding the Fourth Proportional to 17,031.12, 23,502.72 and 9,579.12

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Solution

The fourth proportional to 17,031.12, 23,502.72 and 9,579.12 is: 13,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,031.12 : 23,502.72 = 9,579.12 : x
  2. Step 2: Convert to fraction form
    17,031.12/23,502.72 = 9,579.12/x
  3. Step 3: Cross multiply
    17,031.12x = 23,502.72 × 9,579.12
  4. Step 4: Simplify right side
    17,031.12x = 225,135,375.21
  5. Step 5: Solve for x
    x = 225,135,375.21/17,031.12
  6. Step 6: Final answer
    x = 13,219.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.