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Finding the Fourth Proportional to 63,424, 87,525.12 and 35,131.51

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Solution

The fourth proportional to 63,424, 87,525.12 and 35,131.51 is: 48,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,424 : 87,525.12 = 35,131.51 : x
  2. Step 2: Convert to fraction form
    63,424/87,525.12 = 35,131.51/x
  3. Step 3: Cross multiply
    63,424x = 87,525.12 × 35,131.51
  4. Step 4: Simplify right side
    63,424x = 3,074,889,628.53
  5. Step 5: Solve for x
    x = 3,074,889,628.53/63,424
  6. Step 6: Final answer
    x = 48,481.48

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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.