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Finding the Fourth Proportional to 18,984.60, 26,008.47 and 18,274.70

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Solution

The fourth proportional to 18,984.60, 26,008.47 and 18,274.70 is: 25,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.60 : 26,008.47 = 18,274.70 : x
  2. Step 2: Convert to fraction form
    18,984.60/26,008.47 = 18,274.70/x
  3. Step 3: Cross multiply
    18,984.60x = 26,008.47 × 18,274.70
  4. Step 4: Simplify right side
    18,984.60x = 475,297,051.73
  5. Step 5: Solve for x
    x = 475,297,051.73/18,984.60
  6. Step 6: Final answer
    x = 25,035.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.