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Finding the Fourth Proportional to 45,809.81, 69,026.78 and 37,672.11

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Solution

The fourth proportional to 45,809.81, 69,026.78 and 37,672.11 is: 56,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,809.81 : 69,026.78 = 37,672.11 : x
  2. Step 2: Convert to fraction form
    45,809.81/69,026.78 = 37,672.11/x
  3. Step 3: Cross multiply
    45,809.81x = 69,026.78 × 37,672.11
  4. Step 4: Simplify right side
    45,809.81x = 2,600,384,260.75
  5. Step 5: Solve for x
    x = 2,600,384,260.75/45,809.81
  6. Step 6: Final answer
    x = 56,764.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.