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Finding the Fourth Proportional to 18,602.56, 27,843.18 and 13,670.92

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Solution

The fourth proportional to 18,602.56, 27,843.18 and 13,670.92 is: 20,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.56 : 27,843.18 = 13,670.92 : x
  2. Step 2: Convert to fraction form
    18,602.56/27,843.18 = 13,670.92/x
  3. Step 3: Cross multiply
    18,602.56x = 27,843.18 × 13,670.92
  4. Step 4: Simplify right side
    18,602.56x = 380,641,886.33
  5. Step 5: Solve for x
    x = 380,641,886.33/18,602.56
  6. Step 6: Final answer
    x = 20,461.80

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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.