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Finding the Fourth Proportional to 17,430.88, 25,982.12 and 16,031.20

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Solution

The fourth proportional to 17,430.88, 25,982.12 and 16,031.20 is: 23,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,430.88 : 25,982.12 = 16,031.20 : x
  2. Step 2: Convert to fraction form
    17,430.88/25,982.12 = 16,031.20/x
  3. Step 3: Cross multiply
    17,430.88x = 25,982.12 × 16,031.20
  4. Step 4: Simplify right side
    17,430.88x = 416,524,562.14
  5. Step 5: Solve for x
    x = 416,524,562.14/17,430.88
  6. Step 6: Final answer
    x = 23,895.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.