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Finding the Fourth Proportional to 18,460.94, 27,691.82 and 6,615.50

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Solution

The fourth proportional to 18,460.94, 27,691.82 and 6,615.50 is: 9,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.94 : 27,691.82 = 6,615.50 : x
  2. Step 2: Convert to fraction form
    18,460.94/27,691.82 = 6,615.50/x
  3. Step 3: Cross multiply
    18,460.94x = 27,691.82 × 6,615.50
  4. Step 4: Simplify right side
    18,460.94x = 183,195,063.67
  5. Step 5: Solve for x
    x = 183,195,063.67/18,460.94
  6. Step 6: Final answer
    x = 9,923.39

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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.