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Finding the Fourth Proportional to 16,666.88, 25,003.92 and 4,981.04

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Solution

The fourth proportional to 16,666.88, 25,003.92 and 4,981.04 is: 7,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.88 : 25,003.92 = 4,981.04 : x
  2. Step 2: Convert to fraction form
    16,666.88/25,003.92 = 4,981.04/x
  3. Step 3: Cross multiply
    16,666.88x = 25,003.92 × 4,981.04
  4. Step 4: Simplify right side
    16,666.88x = 124,545,525.68
  5. Step 5: Solve for x
    x = 124,545,525.68/16,666.88
  6. Step 6: Final answer
    x = 7,472.64

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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.