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Finding the Fourth Proportional to 18,292.61, 27,420.08 and 7,194.80

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Solution

The fourth proportional to 18,292.61, 27,420.08 and 7,194.80 is: 10,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.61 : 27,420.08 = 7,194.80 : x
  2. Step 2: Convert to fraction form
    18,292.61/27,420.08 = 7,194.80/x
  3. Step 3: Cross multiply
    18,292.61x = 27,420.08 × 7,194.80
  4. Step 4: Simplify right side
    18,292.61x = 197,281,991.58
  5. Step 5: Solve for x
    x = 197,281,991.58/18,292.61
  6. Step 6: Final answer
    x = 10,784.79

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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.