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Finding the Fourth Proportional to 18,882, 26,057.16 and 10,498.32

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Solution

The fourth proportional to 18,882, 26,057.16 and 10,498.32 is: 14,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882 : 26,057.16 = 10,498.32 : x
  2. Step 2: Convert to fraction form
    18,882/26,057.16 = 10,498.32/x
  3. Step 3: Cross multiply
    18,882x = 26,057.16 × 10,498.32
  4. Step 4: Simplify right side
    18,882x = 273,556,403.97
  5. Step 5: Solve for x
    x = 273,556,403.97/18,882
  6. Step 6: Final answer
    x = 14,487.68

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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.