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Finding the Fourth Proportional to 56,940.30, 78,571.64 and 33,062.30

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Solution

The fourth proportional to 56,940.30, 78,571.64 and 33,062.30 is: 45,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,940.30 : 78,571.64 = 33,062.30 : x
  2. Step 2: Convert to fraction form
    56,940.30/78,571.64 = 33,062.30/x
  3. Step 3: Cross multiply
    56,940.30x = 78,571.64 × 33,062.30
  4. Step 4: Simplify right side
    56,940.30x = 2,597,759,133.17
  5. Step 5: Solve for x
    x = 2,597,759,133.17/56,940.30
  6. Step 6: Final answer
    x = 45,622.51

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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.