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Finding the Fourth Proportional to 18,292.40, 27,419.76 and 7,194.59

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Solution

The fourth proportional to 18,292.40, 27,419.76 and 7,194.59 is: 10,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.40 : 27,419.76 = 7,194.59 : x
  2. Step 2: Convert to fraction form
    18,292.40/27,419.76 = 7,194.59/x
  3. Step 3: Cross multiply
    18,292.40x = 27,419.76 × 7,194.59
  4. Step 4: Simplify right side
    18,292.40x = 197,273,794.00
  5. Step 5: Solve for x
    x = 197,273,794.00/18,292.40
  6. Step 6: Final answer
    x = 10,784.47

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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.