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Finding the Fourth Proportional to 64,408.94, 88,889.49 and 35,731.43

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Solution

The fourth proportional to 64,408.94, 88,889.49 and 35,731.43 is: 49,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,408.94 : 88,889.49 = 35,731.43 : x
  2. Step 2: Convert to fraction form
    64,408.94/88,889.49 = 35,731.43/x
  3. Step 3: Cross multiply
    64,408.94x = 88,889.49 × 35,731.43
  4. Step 4: Simplify right side
    64,408.94x = 3,176,148,589.67
  5. Step 5: Solve for x
    x = 3,176,148,589.67/64,408.94
  6. Step 6: Final answer
    x = 49,312.23

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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.