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Finding the Fourth Proportional to 16,881.82, 25,322.72 and 7,519.42

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Solution

The fourth proportional to 16,881.82, 25,322.72 and 7,519.42 is: 11,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.82 : 25,322.72 = 7,519.42 : x
  2. Step 2: Convert to fraction form
    16,881.82/25,322.72 = 7,519.42/x
  3. Step 3: Cross multiply
    16,881.82x = 25,322.72 × 7,519.42
  4. Step 4: Simplify right side
    16,881.82x = 190,412,167.22
  5. Step 5: Solve for x
    x = 190,412,167.22/16,881.82
  6. Step 6: Final answer
    x = 11,279.13

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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.