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Finding the Fourth Proportional to 53,454.37, 80,126.19 and 43,995

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Solution

The fourth proportional to 53,454.37, 80,126.19 and 43,995 is: 65,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,454.37 : 80,126.19 = 43,995 : x
  2. Step 2: Convert to fraction form
    53,454.37/80,126.19 = 43,995/x
  3. Step 3: Cross multiply
    53,454.37x = 80,126.19 × 43,995
  4. Step 4: Simplify right side
    53,454.37x = 3,525,151,729.05
  5. Step 5: Solve for x
    x = 3,525,151,729.05/53,454.37
  6. Step 6: Final answer
    x = 65,946.93

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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.