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Finding the Fourth Proportional to 16,991.26, 25,460.88 and 7,125.14

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Solution

The fourth proportional to 16,991.26, 25,460.88 and 7,125.14 is: 10,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.26 : 25,460.88 = 7,125.14 : x
  2. Step 2: Convert to fraction form
    16,991.26/25,460.88 = 7,125.14/x
  3. Step 3: Cross multiply
    16,991.26x = 25,460.88 × 7,125.14
  4. Step 4: Simplify right side
    16,991.26x = 181,412,334.52
  5. Step 5: Solve for x
    x = 181,412,334.52/16,991.26
  6. Step 6: Final answer
    x = 10,676.80

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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.