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Finding the Fourth Proportional to 63,642.81, 87,824.61 and 35,350.32

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Solution

The fourth proportional to 63,642.81, 87,824.61 and 35,350.32 is: 48,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.81 : 87,824.61 = 35,350.32 : x
  2. Step 2: Convert to fraction form
    63,642.81/87,824.61 = 35,350.32/x
  3. Step 3: Cross multiply
    63,642.81x = 87,824.61 × 35,350.32
  4. Step 4: Simplify right side
    63,642.81x = 3,104,628,067.38
  5. Step 5: Solve for x
    x = 3,104,628,067.38/63,642.81
  6. Step 6: Final answer
    x = 48,782.07

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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.