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Finding the Fourth Proportional to 73,682.77, 110,431.67 and 31,513.25

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Solution

The fourth proportional to 73,682.77, 110,431.67 and 31,513.25 is: 47,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,682.77 : 110,431.67 = 31,513.25 : x
  2. Step 2: Convert to fraction form
    73,682.77/110,431.67 = 31,513.25/x
  3. Step 3: Cross multiply
    73,682.77x = 110,431.67 × 31,513.25
  4. Step 4: Simplify right side
    73,682.77x = 3,480,060,824.63
  5. Step 5: Solve for x
    x = 3,480,060,824.63/73,682.77
  6. Step 6: Final answer
    x = 47,230.32

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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.