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Finding the Fourth Proportional to 48,705.40, 73,007.70 and 26,471.80

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Solution

The fourth proportional to 48,705.40, 73,007.70 and 26,471.80 is: 39,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,705.40 : 73,007.70 = 26,471.80 : x
  2. Step 2: Convert to fraction form
    48,705.40/73,007.70 = 26,471.80/x
  3. Step 3: Cross multiply
    48,705.40x = 73,007.70 × 26,471.80
  4. Step 4: Simplify right side
    48,705.40x = 1,932,645,232.86
  5. Step 5: Solve for x
    x = 1,932,645,232.86/48,705.40
  6. Step 6: Final answer
    x = 39,680.31

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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.