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Finding the Fourth Proportional to 16,681, 24,988.56 and 12,525.88

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Solution

The fourth proportional to 16,681, 24,988.56 and 12,525.88 is: 18,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,681 : 24,988.56 = 12,525.88 : x
  2. Step 2: Convert to fraction form
    16,681/24,988.56 = 12,525.88/x
  3. Step 3: Cross multiply
    16,681x = 24,988.56 × 12,525.88
  4. Step 4: Simplify right side
    16,681x = 313,003,703.93
  5. Step 5: Solve for x
    x = 313,003,703.93/16,681
  6. Step 6: Final answer
    x = 18,764.09

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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.