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Finding the Fourth Proportional to 63,278.44, 87,309.74 and 37,779.84

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Solution

The fourth proportional to 63,278.44, 87,309.74 and 37,779.84 is: 52,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,278.44 : 87,309.74 = 37,779.84 : x
  2. Step 2: Convert to fraction form
    63,278.44/87,309.74 = 37,779.84/x
  3. Step 3: Cross multiply
    63,278.44x = 87,309.74 × 37,779.84
  4. Step 4: Simplify right side
    63,278.44x = 3,298,548,007.64
  5. Step 5: Solve for x
    x = 3,298,548,007.64/63,278.44
  6. Step 6: Final answer
    x = 52,127.52

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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.