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Finding the Fourth Proportional to 19,493.76, 26,900.37 and 10,995.63

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Solution

The fourth proportional to 19,493.76, 26,900.37 and 10,995.63 is: 15,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,493.76 : 26,900.37 = 10,995.63 : x
  2. Step 2: Convert to fraction form
    19,493.76/26,900.37 = 10,995.63/x
  3. Step 3: Cross multiply
    19,493.76x = 26,900.37 × 10,995.63
  4. Step 4: Simplify right side
    19,493.76x = 295,786,515.38
  5. Step 5: Solve for x
    x = 295,786,515.38/19,493.76
  6. Step 6: Final answer
    x = 15,173.39

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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.