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Finding the Fourth Proportional to 18,881.89, 26,057.37 and 10,384.41

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Solution

The fourth proportional to 18,881.89, 26,057.37 and 10,384.41 is: 14,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.89 : 26,057.37 = 10,384.41 : x
  2. Step 2: Convert to fraction form
    18,881.89/26,057.37 = 10,384.41/x
  3. Step 3: Cross multiply
    18,881.89x = 26,057.37 × 10,384.41
  4. Step 4: Simplify right side
    18,881.89x = 270,590,413.60
  5. Step 5: Solve for x
    x = 270,590,413.60/18,881.89
  6. Step 6: Final answer
    x = 14,330.68

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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.