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Finding the Fourth Proportional to 18,473.44, 27,710.16 and 8,619.62

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Solution

The fourth proportional to 18,473.44, 27,710.16 and 8,619.62 is: 12,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.44 : 27,710.16 = 8,619.62 : x
  2. Step 2: Convert to fraction form
    18,473.44/27,710.16 = 8,619.62/x
  3. Step 3: Cross multiply
    18,473.44x = 27,710.16 × 8,619.62
  4. Step 4: Simplify right side
    18,473.44x = 238,851,049.34
  5. Step 5: Solve for x
    x = 238,851,049.34/18,473.44
  6. Step 6: Final answer
    x = 12,929.43

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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.