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Finding the Fourth Proportional to 49,006.85, 67,619.03 and 28,856.38

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Solution

The fourth proportional to 49,006.85, 67,619.03 and 28,856.38 is: 39,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,006.85 : 67,619.03 = 28,856.38 : x
  2. Step 2: Convert to fraction form
    49,006.85/67,619.03 = 28,856.38/x
  3. Step 3: Cross multiply
    49,006.85x = 67,619.03 × 28,856.38
  4. Step 4: Simplify right side
    49,006.85x = 1,951,240,086.82
  5. Step 5: Solve for x
    x = 1,951,240,086.82/49,006.85
  6. Step 6: Final answer
    x = 39,815.66

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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.