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Finding the Fourth Proportional to 48,393, 66,782.34 and 27,172.28

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Solution

The fourth proportional to 48,393, 66,782.34 and 27,172.28 is: 37,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,393 : 66,782.34 = 27,172.28 : x
  2. Step 2: Convert to fraction form
    48,393/66,782.34 = 27,172.28/x
  3. Step 3: Cross multiply
    48,393x = 66,782.34 × 27,172.28
  4. Step 4: Simplify right side
    48,393x = 1,814,628,608.49
  5. Step 5: Solve for x
    x = 1,814,628,608.49/48,393
  6. Step 6: Final answer
    x = 37,497.75

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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.