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Finding the Fourth Proportional to 45,309.92, 68,008.12 and 27,813.92

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Solution

The fourth proportional to 45,309.92, 68,008.12 and 27,813.92 is: 41,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,309.92 : 68,008.12 = 27,813.92 : x
  2. Step 2: Convert to fraction form
    45,309.92/68,008.12 = 27,813.92/x
  3. Step 3: Cross multiply
    45,309.92x = 68,008.12 × 27,813.92
  4. Step 4: Simplify right side
    45,309.92x = 1,891,571,999.46
  5. Step 5: Solve for x
    x = 1,891,571,999.46/45,309.92
  6. Step 6: Final answer
    x = 41,747.42

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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.