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Finding the Fourth Proportional to 18,992.29, 26,209.41 and 10,494.65

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Solution

The fourth proportional to 18,992.29, 26,209.41 and 10,494.65 is: 14,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.29 : 26,209.41 = 10,494.65 : x
  2. Step 2: Convert to fraction form
    18,992.29/26,209.41 = 10,494.65/x
  3. Step 3: Cross multiply
    18,992.29x = 26,209.41 × 10,494.65
  4. Step 4: Simplify right side
    18,992.29x = 275,058,463.40
  5. Step 5: Solve for x
    x = 275,058,463.40/18,992.29
  6. Step 6: Final answer
    x = 14,482.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.