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Finding the Fourth Proportional to 26,906.60, 40,359.90 and 17,089.40

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Solution

The fourth proportional to 26,906.60, 40,359.90 and 17,089.40 is: 25,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,906.60 : 40,359.90 = 17,089.40 : x
  2. Step 2: Convert to fraction form
    26,906.60/40,359.90 = 17,089.40/x
  3. Step 3: Cross multiply
    26,906.60x = 40,359.90 × 17,089.40
  4. Step 4: Simplify right side
    26,906.60x = 689,726,475.06
  5. Step 5: Solve for x
    x = 689,726,475.06/26,906.60
  6. Step 6: Final answer
    x = 25,634.10

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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.