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Finding the Fourth Proportional to 39,874.16, 59,818.80 and 16,500.80

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Solution

The fourth proportional to 39,874.16, 59,818.80 and 16,500.80 is: 24,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.16 : 59,818.80 = 16,500.80 : x
  2. Step 2: Convert to fraction form
    39,874.16/59,818.80 = 16,500.80/x
  3. Step 3: Cross multiply
    39,874.16x = 59,818.80 × 16,500.80
  4. Step 4: Simplify right side
    39,874.16x = 987,058,055.04
  5. Step 5: Solve for x
    x = 987,058,055.04/39,874.16
  6. Step 6: Final answer
    x = 24,754.33

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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.