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Finding the Fourth Proportional to 57,395.52, 86,080.86 and 40,708.98

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Solution

The fourth proportional to 57,395.52, 86,080.86 and 40,708.98 is: 61,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,395.52 : 86,080.86 = 40,708.98 : x
  2. Step 2: Convert to fraction form
    57,395.52/86,080.86 = 40,708.98/x
  3. Step 3: Cross multiply
    57,395.52x = 86,080.86 × 40,708.98
  4. Step 4: Simplify right side
    57,395.52x = 3,504,264,008.12
  5. Step 5: Solve for x
    x = 3,504,264,008.12/57,395.52
  6. Step 6: Final answer
    x = 61,054.66

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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.