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Finding the Fourth Proportional to 40,309.64, 60,461.22 and 25,475.30

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Solution

The fourth proportional to 40,309.64, 60,461.22 and 25,475.30 is: 38,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,309.64 : 60,461.22 = 25,475.30 : x
  2. Step 2: Convert to fraction form
    40,309.64/60,461.22 = 25,475.30/x
  3. Step 3: Cross multiply
    40,309.64x = 60,461.22 × 25,475.30
  4. Step 4: Simplify right side
    40,309.64x = 1,540,267,717.87
  5. Step 5: Solve for x
    x = 1,540,267,717.87/40,309.64
  6. Step 6: Final answer
    x = 38,210.90

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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.