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Finding the Fourth Proportional to 18,856.35, 26,020.62 and 10,896.90

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Solution

The fourth proportional to 18,856.35, 26,020.62 and 10,896.90 is: 15,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.35 : 26,020.62 = 10,896.90 : x
  2. Step 2: Convert to fraction form
    18,856.35/26,020.62 = 10,896.90/x
  3. Step 3: Cross multiply
    18,856.35x = 26,020.62 × 10,896.90
  4. Step 4: Simplify right side
    18,856.35x = 283,544,094.08
  5. Step 5: Solve for x
    x = 283,544,094.08/18,856.35
  6. Step 6: Final answer
    x = 15,037.06

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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.