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Finding the Fourth Proportional to 27,488.36, 41,139.09 and 16,965.05

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Solution

The fourth proportional to 27,488.36, 41,139.09 and 16,965.05 is: 25,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,488.36 : 41,139.09 = 16,965.05 : x
  2. Step 2: Convert to fraction form
    27,488.36/41,139.09 = 16,965.05/x
  3. Step 3: Cross multiply
    27,488.36x = 41,139.09 × 16,965.05
  4. Step 4: Simplify right side
    27,488.36x = 697,926,513.11
  5. Step 5: Solve for x
    x = 697,926,513.11/27,488.36
  6. Step 6: Final answer
    x = 25,389.89

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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.