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Finding the Fourth Proportional to 18,246.50, 25,180.20 and 9,863

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Solution

The fourth proportional to 18,246.50, 25,180.20 and 9,863 is: 13,610.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.50 : 25,180.20 = 9,863 : x
  2. Step 2: Convert to fraction form
    18,246.50/25,180.20 = 9,863/x
  3. Step 3: Cross multiply
    18,246.50x = 25,180.20 × 9,863
  4. Step 4: Simplify right side
    18,246.50x = 248,352,312.60
  5. Step 5: Solve for x
    x = 248,352,312.60/18,246.50
  6. Step 6: Final answer
    x = 13,610.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.