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Finding the Fourth Proportional to 63,639.36, 87,824.52 and 35,347.68

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Solution

The fourth proportional to 63,639.36, 87,824.52 and 35,347.68 is: 48,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639.36 : 87,824.52 = 35,347.68 : x
  2. Step 2: Convert to fraction form
    63,639.36/87,824.52 = 35,347.68/x
  3. Step 3: Cross multiply
    63,639.36x = 87,824.52 × 35,347.68
  4. Step 4: Simplify right side
    63,639.36x = 3,104,393,029.11
  5. Step 5: Solve for x
    x = 3,104,393,029.11/63,639.36
  6. Step 6: Final answer
    x = 48,781.02

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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.