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Finding the Fourth Proportional to 64,115.63, 88,479.60 and 35,821.31

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Solution

The fourth proportional to 64,115.63, 88,479.60 and 35,821.31 is: 49,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,115.63 : 88,479.60 = 35,821.31 : x
  2. Step 2: Convert to fraction form
    64,115.63/88,479.60 = 35,821.31/x
  3. Step 3: Cross multiply
    64,115.63x = 88,479.60 × 35,821.31
  4. Step 4: Simplify right side
    64,115.63x = 3,169,455,401.48
  5. Step 5: Solve for x
    x = 3,169,455,401.48/64,115.63
  6. Step 6: Final answer
    x = 49,433.43

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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.