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Finding the Fourth Proportional to 10,958.12, 16,422.46 and 7,060.52

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Solution

The fourth proportional to 10,958.12, 16,422.46 and 7,060.52 is: 10,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.12 : 16,422.46 = 7,060.52 : x
  2. Step 2: Convert to fraction form
    10,958.12/16,422.46 = 7,060.52/x
  3. Step 3: Cross multiply
    10,958.12x = 16,422.46 × 7,060.52
  4. Step 4: Simplify right side
    10,958.12x = 115,951,107.28
  5. Step 5: Solve for x
    x = 115,951,107.28/10,958.12
  6. Step 6: Final answer
    x = 10,581.30

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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.