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Finding the Fourth Proportional to 41,998.92, 57,890.94 and 28,382.70

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Solution

The fourth proportional to 41,998.92, 57,890.94 and 28,382.70 is: 39,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,998.92 : 57,890.94 = 28,382.70 : x
  2. Step 2: Convert to fraction form
    41,998.92/57,890.94 = 28,382.70/x
  3. Step 3: Cross multiply
    41,998.92x = 57,890.94 × 28,382.70
  4. Step 4: Simplify right side
    41,998.92x = 1,643,101,182.74
  5. Step 5: Solve for x
    x = 1,643,101,182.74/41,998.92
  6. Step 6: Final answer
    x = 39,122.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.