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Finding the Fourth Proportional to 18,009.60, 26,990.10 and 10,092.66

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Solution

The fourth proportional to 18,009.60, 26,990.10 and 10,092.66 is: 15,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.60 : 26,990.10 = 10,092.66 : x
  2. Step 2: Convert to fraction form
    18,009.60/26,990.10 = 10,092.66/x
  3. Step 3: Cross multiply
    18,009.60x = 26,990.10 × 10,092.66
  4. Step 4: Simplify right side
    18,009.60x = 272,401,902.67
  5. Step 5: Solve for x
    x = 272,401,902.67/18,009.60
  6. Step 6: Final answer
    x = 15,125.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.