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Finding the Fourth Proportional to 18,893.01, 26,069.60 and 11,337.74

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Solution

The fourth proportional to 18,893.01, 26,069.60 and 11,337.74 is: 15,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.01 : 26,069.60 = 11,337.74 : x
  2. Step 2: Convert to fraction form
    18,893.01/26,069.60 = 11,337.74/x
  3. Step 3: Cross multiply
    18,893.01x = 26,069.60 × 11,337.74
  4. Step 4: Simplify right side
    18,893.01x = 295,570,244.70
  5. Step 5: Solve for x
    x = 295,570,244.70/18,893.01
  6. Step 6: Final answer
    x = 15,644.42

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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.