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Finding the Fourth Proportional to 48,798.92, 67,317.78 and 30,863.72

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Solution

The fourth proportional to 48,798.92, 67,317.78 and 30,863.72 is: 42,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,798.92 : 67,317.78 = 30,863.72 : x
  2. Step 2: Convert to fraction form
    48,798.92/67,317.78 = 30,863.72/x
  3. Step 3: Cross multiply
    48,798.92x = 67,317.78 × 30,863.72
  4. Step 4: Simplify right side
    48,798.92x = 2,077,677,112.94
  5. Step 5: Solve for x
    x = 2,077,677,112.94/48,798.92
  6. Step 6: Final answer
    x = 42,576.29

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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.