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Finding the Fourth Proportional to 18,896.68, 26,078.34 and 10,937.48

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Solution

The fourth proportional to 18,896.68, 26,078.34 and 10,937.48 is: 15,094.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.68 : 26,078.34 = 10,937.48 : x
  2. Step 2: Convert to fraction form
    18,896.68/26,078.34 = 10,937.48/x
  3. Step 3: Cross multiply
    18,896.68x = 26,078.34 × 10,937.48
  4. Step 4: Simplify right side
    18,896.68x = 285,231,322.18
  5. Step 5: Solve for x
    x = 285,231,322.18/18,896.68
  6. Step 6: Final answer
    x = 15,094.26

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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.