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Finding the Fourth Proportional to 18,898.62, 28,348.20 and 6,586.62

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Solution

The fourth proportional to 18,898.62, 28,348.20 and 6,586.62 is: 9,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.62 : 28,348.20 = 6,586.62 : x
  2. Step 2: Convert to fraction form
    18,898.62/28,348.20 = 6,586.62/x
  3. Step 3: Cross multiply
    18,898.62x = 28,348.20 × 6,586.62
  4. Step 4: Simplify right side
    18,898.62x = 186,718,821.08
  5. Step 5: Solve for x
    x = 186,718,821.08/18,898.62
  6. Step 6: Final answer
    x = 9,880.02

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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.