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Finding the Fourth Proportional to 18,920.69, 26,109.83 and 10,537.19

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Solution

The fourth proportional to 18,920.69, 26,109.83 and 10,537.19 is: 14,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.69 : 26,109.83 = 10,537.19 : x
  2. Step 2: Convert to fraction form
    18,920.69/26,109.83 = 10,537.19/x
  3. Step 3: Cross multiply
    18,920.69x = 26,109.83 × 10,537.19
  4. Step 4: Simplify right side
    18,920.69x = 275,124,056.34
  5. Step 5: Solve for x
    x = 275,124,056.34/18,920.69
  6. Step 6: Final answer
    x = 14,540.91

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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.