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Finding the Fourth Proportional to 18,602.20, 27,896.34 and 7,502.84

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Solution

The fourth proportional to 18,602.20, 27,896.34 and 7,502.84 is: 11,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.20 : 27,896.34 = 7,502.84 : x
  2. Step 2: Convert to fraction form
    18,602.20/27,896.34 = 7,502.84/x
  3. Step 3: Cross multiply
    18,602.20x = 27,896.34 × 7,502.84
  4. Step 4: Simplify right side
    18,602.20x = 209,301,775.61
  5. Step 5: Solve for x
    x = 209,301,775.61/18,602.20
  6. Step 6: Final answer
    x = 11,251.46

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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.