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Finding the Fourth Proportional to 49,798.32, 68,719.03 and 28,576.19

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Solution

The fourth proportional to 49,798.32, 68,719.03 and 28,576.19 is: 39,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,798.32 : 68,719.03 = 28,576.19 : x
  2. Step 2: Convert to fraction form
    49,798.32/68,719.03 = 28,576.19/x
  3. Step 3: Cross multiply
    49,798.32x = 68,719.03 × 28,576.19
  4. Step 4: Simplify right side
    49,798.32x = 1,963,728,057.90
  5. Step 5: Solve for x
    x = 1,963,728,057.90/49,798.32
  6. Step 6: Final answer
    x = 39,433.62

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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.