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Finding the Fourth Proportional to 18,461.84, 27,691.04 and 7,365.60

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Solution

The fourth proportional to 18,461.84, 27,691.04 and 7,365.60 is: 11,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.84 : 27,691.04 = 7,365.60 : x
  2. Step 2: Convert to fraction form
    18,461.84/27,691.04 = 7,365.60/x
  3. Step 3: Cross multiply
    18,461.84x = 27,691.04 × 7,365.60
  4. Step 4: Simplify right side
    18,461.84x = 203,961,124.22
  5. Step 5: Solve for x
    x = 203,961,124.22/18,461.84
  6. Step 6: Final answer
    x = 11,047.71

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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.