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Finding the Fourth Proportional to 18,902.59, 26,084.04 and 10,945.32

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Solution

The fourth proportional to 18,902.59, 26,084.04 and 10,945.32 is: 15,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.59 : 26,084.04 = 10,945.32 : x
  2. Step 2: Convert to fraction form
    18,902.59/26,084.04 = 10,945.32/x
  3. Step 3: Cross multiply
    18,902.59x = 26,084.04 × 10,945.32
  4. Step 4: Simplify right side
    18,902.59x = 285,498,025.83
  5. Step 5: Solve for x
    x = 285,498,025.83/18,902.59
  6. Step 6: Final answer
    x = 15,103.65

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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.