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Finding the Fourth Proportional to 48,673.71, 73,022.31 and 13,612.86

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Solution

The fourth proportional to 48,673.71, 73,022.31 and 13,612.86 is: 20,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,673.71 : 73,022.31 = 13,612.86 : x
  2. Step 2: Convert to fraction form
    48,673.71/73,022.31 = 13,612.86/x
  3. Step 3: Cross multiply
    48,673.71x = 73,022.31 × 13,612.86
  4. Step 4: Simplify right side
    48,673.71x = 994,042,482.91
  5. Step 5: Solve for x
    x = 994,042,482.91/48,673.71
  6. Step 6: Final answer
    x = 20,422.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.