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Finding the Fourth Proportional to 63,643.36, 87,830.04 and 35,351.68

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Solution

The fourth proportional to 63,643.36, 87,830.04 and 35,351.68 is: 48,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.36 : 87,830.04 = 35,351.68 : x
  2. Step 2: Convert to fraction form
    63,643.36/87,830.04 = 35,351.68/x
  3. Step 3: Cross multiply
    63,643.36x = 87,830.04 × 35,351.68
  4. Step 4: Simplify right side
    63,643.36x = 3,104,939,468.47
  5. Step 5: Solve for x
    x = 3,104,939,468.47/63,643.36
  6. Step 6: Final answer
    x = 48,786.54

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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.