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Finding the Fourth Proportional to 31,323.94, 43,201.90 and 27,539.08

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Solution

The fourth proportional to 31,323.94, 43,201.90 and 27,539.08 is: 37,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,323.94 : 43,201.90 = 27,539.08 : x
  2. Step 2: Convert to fraction form
    31,323.94/43,201.90 = 27,539.08/x
  3. Step 3: Cross multiply
    31,323.94x = 43,201.90 × 27,539.08
  4. Step 4: Simplify right side
    31,323.94x = 1,189,740,580.25
  5. Step 5: Solve for x
    x = 1,189,740,580.25/31,323.94
  6. Step 6: Final answer
    x = 37,981.83

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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.