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Finding the Fourth Proportional to 65,231.57, 90,019.56 and 36,937.25

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Solution

The fourth proportional to 65,231.57, 90,019.56 and 36,937.25 is: 50,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231.57 : 90,019.56 = 36,937.25 : x
  2. Step 2: Convert to fraction form
    65,231.57/90,019.56 = 36,937.25/x
  3. Step 3: Cross multiply
    65,231.57x = 90,019.56 × 36,937.25
  4. Step 4: Simplify right side
    65,231.57x = 3,325,074,992.61
  5. Step 5: Solve for x
    x = 3,325,074,992.61/65,231.57
  6. Step 6: Final answer
    x = 50,973.41

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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.