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Finding the Fourth Proportional to 49,886.40, 74,813.40 and 16,600.80

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Solution

The fourth proportional to 49,886.40, 74,813.40 and 16,600.80 is: 24,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,886.40 : 74,813.40 = 16,600.80 : x
  2. Step 2: Convert to fraction form
    49,886.40/74,813.40 = 16,600.80/x
  3. Step 3: Cross multiply
    49,886.40x = 74,813.40 × 16,600.80
  4. Step 4: Simplify right side
    49,886.40x = 1,241,962,290.72
  5. Step 5: Solve for x
    x = 1,241,962,290.72/49,886.40
  6. Step 6: Final answer
    x = 24,895.81

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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.