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Finding the Fourth Proportional to 18,879.38, 26,053.55 and 10,495.88

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Solution

The fourth proportional to 18,879.38, 26,053.55 and 10,495.88 is: 14,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.38 : 26,053.55 = 10,495.88 : x
  2. Step 2: Convert to fraction form
    18,879.38/26,053.55 = 10,495.88/x
  3. Step 3: Cross multiply
    18,879.38x = 26,053.55 × 10,495.88
  4. Step 4: Simplify right side
    18,879.38x = 273,454,751.63
  5. Step 5: Solve for x
    x = 273,454,751.63/18,879.38
  6. Step 6: Final answer
    x = 14,484.31

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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.