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Finding the Fourth Proportional to 18,276.60, 27,417.60 and 5,797.80

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Solution

The fourth proportional to 18,276.60, 27,417.60 and 5,797.80 is: 8,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.60 : 27,417.60 = 5,797.80 : x
  2. Step 2: Convert to fraction form
    18,276.60/27,417.60 = 5,797.80/x
  3. Step 3: Cross multiply
    18,276.60x = 27,417.60 × 5,797.80
  4. Step 4: Simplify right side
    18,276.60x = 158,961,761.28
  5. Step 5: Solve for x
    x = 158,961,761.28/18,276.60
  6. Step 6: Final answer
    x = 8,697.56

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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.