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Finding the Fourth Proportional to 18,898.63, 28,348.21 and 6,586.63

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Solution

The fourth proportional to 18,898.63, 28,348.21 and 6,586.63 is: 9,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.63 : 28,348.21 = 6,586.63 : x
  2. Step 2: Convert to fraction form
    18,898.63/28,348.21 = 6,586.63/x
  3. Step 3: Cross multiply
    18,898.63x = 28,348.21 × 6,586.63
  4. Step 4: Simplify right side
    18,898.63x = 186,719,170.43
  5. Step 5: Solve for x
    x = 186,719,170.43/18,898.63
  6. Step 6: Final answer
    x = 9,880.04

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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.