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Finding the Fourth Proportional to 53,859.91, 80,787.03 and 16,419.08

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Solution

The fourth proportional to 53,859.91, 80,787.03 and 16,419.08 is: 24,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,859.91 : 80,787.03 = 16,419.08 : x
  2. Step 2: Convert to fraction form
    53,859.91/80,787.03 = 16,419.08/x
  3. Step 3: Cross multiply
    53,859.91x = 80,787.03 × 16,419.08
  4. Step 4: Simplify right side
    53,859.91x = 1,326,448,708.53
  5. Step 5: Solve for x
    x = 1,326,448,708.53/53,859.91
  6. Step 6: Final answer
    x = 24,627.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.