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Finding the Fourth Proportional to 18,454.60, 27,668.46 and 12,592.84

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Solution

The fourth proportional to 18,454.60, 27,668.46 and 12,592.84 is: 18,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.60 : 27,668.46 = 12,592.84 : x
  2. Step 2: Convert to fraction form
    18,454.60/27,668.46 = 12,592.84/x
  3. Step 3: Cross multiply
    18,454.60x = 27,668.46 × 12,592.84
  4. Step 4: Simplify right side
    18,454.60x = 348,424,489.83
  5. Step 5: Solve for x
    x = 348,424,489.83/18,454.60
  6. Step 6: Final answer
    x = 18,880.09

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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.