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Finding the Fourth Proportional to 16,953.52, 25,434.90 and 8,188.44

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Solution

The fourth proportional to 16,953.52, 25,434.90 and 8,188.44 is: 12,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.52 : 25,434.90 = 8,188.44 : x
  2. Step 2: Convert to fraction form
    16,953.52/25,434.90 = 8,188.44/x
  3. Step 3: Cross multiply
    16,953.52x = 25,434.90 × 8,188.44
  4. Step 4: Simplify right side
    16,953.52x = 208,272,001.87
  5. Step 5: Solve for x
    x = 208,272,001.87/16,953.52
  6. Step 6: Final answer
    x = 12,284.88

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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.