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Finding the Fourth Proportional to 18,877.57, 26,051.06 and 10,379.83

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Solution

The fourth proportional to 18,877.57, 26,051.06 and 10,379.83 is: 14,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.57 : 26,051.06 = 10,379.83 : x
  2. Step 2: Convert to fraction form
    18,877.57/26,051.06 = 10,379.83/x
  3. Step 3: Cross multiply
    18,877.57x = 26,051.06 × 10,379.83
  4. Step 4: Simplify right side
    18,877.57x = 270,405,613.17
  5. Step 5: Solve for x
    x = 270,405,613.17/18,877.57
  6. Step 6: Final answer
    x = 14,324.18

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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.