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Finding the Fourth Proportional to 49,856.28, 68,803.02 and 28,639.32

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Solution

The fourth proportional to 49,856.28, 68,803.02 and 28,639.32 is: 39,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,856.28 : 68,803.02 = 28,639.32 : x
  2. Step 2: Convert to fraction form
    49,856.28/68,803.02 = 28,639.32/x
  3. Step 3: Cross multiply
    49,856.28x = 68,803.02 × 28,639.32
  4. Step 4: Simplify right side
    49,856.28x = 1,970,471,706.75
  5. Step 5: Solve for x
    x = 1,970,471,706.75/49,856.28
  6. Step 6: Final answer
    x = 39,523.04

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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.