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Finding the Fourth Proportional to 18,886.50, 26,063.37 and 10,503

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Solution

The fourth proportional to 18,886.50, 26,063.37 and 10,503 is: 14,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.50 : 26,063.37 = 10,503 : x
  2. Step 2: Convert to fraction form
    18,886.50/26,063.37 = 10,503/x
  3. Step 3: Cross multiply
    18,886.50x = 26,063.37 × 10,503
  4. Step 4: Simplify right side
    18,886.50x = 273,743,575.11
  5. Step 5: Solve for x
    x = 273,743,575.11/18,886.50
  6. Step 6: Final answer
    x = 14,494.14

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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.