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Finding the Fourth Proportional to 18,043.92, 27,065.88 and 6,354.36

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Solution

The fourth proportional to 18,043.92, 27,065.88 and 6,354.36 is: 9,531.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.92 : 27,065.88 = 6,354.36 : x
  2. Step 2: Convert to fraction form
    18,043.92/27,065.88 = 6,354.36/x
  3. Step 3: Cross multiply
    18,043.92x = 27,065.88 × 6,354.36
  4. Step 4: Simplify right side
    18,043.92x = 171,986,345.24
  5. Step 5: Solve for x
    x = 171,986,345.24/18,043.92
  6. Step 6: Final answer
    x = 9,531.54

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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.