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Finding the Fourth Proportional to 47,728.36, 66,007.86 and 41,749.64

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Solution

The fourth proportional to 47,728.36, 66,007.86 and 41,749.64 is: 57,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.36 : 66,007.86 = 41,749.64 : x
  2. Step 2: Convert to fraction form
    47,728.36/66,007.86 = 41,749.64/x
  3. Step 3: Cross multiply
    47,728.36x = 66,007.86 × 41,749.64
  4. Step 4: Simplify right side
    47,728.36x = 2,755,804,392.17
  5. Step 5: Solve for x
    x = 2,755,804,392.17/47,728.36
  6. Step 6: Final answer
    x = 57,739.35

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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.