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Finding the Fourth Proportional to 45,874.40, 68,813.04 and 16,291.76

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Solution

The fourth proportional to 45,874.40, 68,813.04 and 16,291.76 is: 24,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,874.40 : 68,813.04 = 16,291.76 : x
  2. Step 2: Convert to fraction form
    45,874.40/68,813.04 = 16,291.76/x
  3. Step 3: Cross multiply
    45,874.40x = 68,813.04 × 16,291.76
  4. Step 4: Simplify right side
    45,874.40x = 1,121,085,532.55
  5. Step 5: Solve for x
    x = 1,121,085,532.55/45,874.40
  6. Step 6: Final answer
    x = 24,438.15

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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.