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Finding the Fourth Proportional to 18,627.88, 27,934.44 and 8,232.36

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Solution

The fourth proportional to 18,627.88, 27,934.44 and 8,232.36 is: 12,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.88 : 27,934.44 = 8,232.36 : x
  2. Step 2: Convert to fraction form
    18,627.88/27,934.44 = 8,232.36/x
  3. Step 3: Cross multiply
    18,627.88x = 27,934.44 × 8,232.36
  4. Step 4: Simplify right side
    18,627.88x = 229,966,366.48
  5. Step 5: Solve for x
    x = 229,966,366.48/18,627.88
  6. Step 6: Final answer
    x = 12,345.28

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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.