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Finding the Fourth Proportional to 18,230.94, 27,335.46 and 7,124.39

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Solution

The fourth proportional to 18,230.94, 27,335.46 and 7,124.39 is: 10,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.94 : 27,335.46 = 7,124.39 : x
  2. Step 2: Convert to fraction form
    18,230.94/27,335.46 = 7,124.39/x
  3. Step 3: Cross multiply
    18,230.94x = 27,335.46 × 7,124.39
  4. Step 4: Simplify right side
    18,230.94x = 194,748,470.42
  5. Step 5: Solve for x
    x = 194,748,470.42/18,230.94
  6. Step 6: Final answer
    x = 10,682.31

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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.