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Finding the Fourth Proportional to 64,219.66, 88,621.80 and 35,539.31

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Solution

The fourth proportional to 64,219.66, 88,621.80 and 35,539.31 is: 49,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,219.66 : 88,621.80 = 35,539.31 : x
  2. Step 2: Convert to fraction form
    64,219.66/88,621.80 = 35,539.31/x
  3. Step 3: Cross multiply
    64,219.66x = 88,621.80 × 35,539.31
  4. Step 4: Simplify right side
    64,219.66x = 3,149,557,622.96
  5. Step 5: Solve for x
    x = 3,149,557,622.96/64,219.66
  6. Step 6: Final answer
    x = 49,043.51

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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.