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Finding the Fourth Proportional to 72,628.88, 108,887.96 and 37,546.16

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Solution

The fourth proportional to 72,628.88, 108,887.96 and 37,546.16 is: 56,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,628.88 : 108,887.96 = 37,546.16 : x
  2. Step 2: Convert to fraction form
    72,628.88/108,887.96 = 37,546.16/x
  3. Step 3: Cross multiply
    72,628.88x = 108,887.96 × 37,546.16
  4. Step 4: Simplify right side
    72,628.88x = 4,088,324,768.23
  5. Step 5: Solve for x
    x = 4,088,324,768.23/72,628.88
  6. Step 6: Final answer
    x = 56,290.62

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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.