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Finding the Fourth Proportional to 18,848.10, 26,007.03 and 10,887.42

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Solution

The fourth proportional to 18,848.10, 26,007.03 and 10,887.42 is: 15,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.10 : 26,007.03 = 10,887.42 : x
  2. Step 2: Convert to fraction form
    18,848.10/26,007.03 = 10,887.42/x
  3. Step 3: Cross multiply
    18,848.10x = 26,007.03 × 10,887.42
  4. Step 4: Simplify right side
    18,848.10x = 283,149,458.56
  5. Step 5: Solve for x
    x = 283,149,458.56/18,848.10
  6. Step 6: Final answer
    x = 15,022.71

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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.