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Finding the Fourth Proportional to 16,672.64, 25,007.12 and 6,681.58

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Solution

The fourth proportional to 16,672.64, 25,007.12 and 6,681.58 is: 10,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.64 : 25,007.12 = 6,681.58 : x
  2. Step 2: Convert to fraction form
    16,672.64/25,007.12 = 6,681.58/x
  3. Step 3: Cross multiply
    16,672.64x = 25,007.12 × 6,681.58
  4. Step 4: Simplify right side
    16,672.64x = 167,087,072.85
  5. Step 5: Solve for x
    x = 167,087,072.85/16,672.64
  6. Step 6: Final answer
    x = 10,021.63

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1.5x scale

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.