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Finding the Fourth Proportional to 49,489.50, 68,295.78 and 29,356.50

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Solution

The fourth proportional to 49,489.50, 68,295.78 and 29,356.50 is: 40,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,489.50 : 68,295.78 = 29,356.50 : x
  2. Step 2: Convert to fraction form
    49,489.50/68,295.78 = 29,356.50/x
  3. Step 3: Cross multiply
    49,489.50x = 68,295.78 × 29,356.50
  4. Step 4: Simplify right side
    49,489.50x = 2,004,925,065.57
  5. Step 5: Solve for x
    x = 2,004,925,065.57/49,489.50
  6. Step 6: Final answer
    x = 40,512.13

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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.