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Finding the Fourth Proportional to 68,062.39, 102,098.44 and 18,142.22

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Solution

The fourth proportional to 68,062.39, 102,098.44 and 18,142.22 is: 27,214.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,062.39 : 102,098.44 = 18,142.22 : x
  2. Step 2: Convert to fraction form
    68,062.39/102,098.44 = 18,142.22/x
  3. Step 3: Cross multiply
    68,062.39x = 102,098.44 × 18,142.22
  4. Step 4: Simplify right side
    68,062.39x = 1,852,292,360.14
  5. Step 5: Solve for x
    x = 1,852,292,360.14/68,062.39
  6. Step 6: Final answer
    x = 27,214.62

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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.