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Finding the Fourth Proportional to 18,610.06, 27,892.38 and 8,736.16

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Solution

The fourth proportional to 18,610.06, 27,892.38 and 8,736.16 is: 13,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.06 : 27,892.38 = 8,736.16 : x
  2. Step 2: Convert to fraction form
    18,610.06/27,892.38 = 8,736.16/x
  3. Step 3: Cross multiply
    18,610.06x = 27,892.38 × 8,736.16
  4. Step 4: Simplify right side
    18,610.06x = 243,672,294.46
  5. Step 5: Solve for x
    x = 243,672,294.46/18,610.06
  6. Step 6: Final answer
    x = 13,093.58

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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.