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Finding the Fourth Proportional to 48,728.40, 73,042.20 and 26,494.80

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Solution

The fourth proportional to 48,728.40, 73,042.20 and 26,494.80 is: 39,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.40 : 73,042.20 = 26,494.80 : x
  2. Step 2: Convert to fraction form
    48,728.40/73,042.20 = 26,494.80/x
  3. Step 3: Cross multiply
    48,728.40x = 73,042.20 × 26,494.80
  4. Step 4: Simplify right side
    48,728.40x = 1,935,238,480.56
  5. Step 5: Solve for x
    x = 1,935,238,480.56/48,728.40
  6. Step 6: Final answer
    x = 39,714.80

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1.5x scale

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.