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Finding the Fourth Proportional to 65,234.42, 90,023.86 and 36,945.62

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Solution

The fourth proportional to 65,234.42, 90,023.86 and 36,945.62 is: 50,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,234.42 : 90,023.86 = 36,945.62 : x
  2. Step 2: Convert to fraction form
    65,234.42/90,023.86 = 36,945.62/x
  3. Step 3: Cross multiply
    65,234.42x = 90,023.86 × 36,945.62
  4. Step 4: Simplify right side
    65,234.42x = 3,325,987,322.49
  5. Step 5: Solve for x
    x = 3,325,987,322.49/65,234.42
  6. Step 6: Final answer
    x = 50,985.16

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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.