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Finding the Fourth Proportional to 16,794.70, 25,216.35 and 12,663.70

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Solution

The fourth proportional to 16,794.70, 25,216.35 and 12,663.70 is: 19,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,794.70 : 25,216.35 = 12,663.70 : x
  2. Step 2: Convert to fraction form
    16,794.70/25,216.35 = 12,663.70/x
  3. Step 3: Cross multiply
    16,794.70x = 25,216.35 × 12,663.70
  4. Step 4: Simplify right side
    16,794.70x = 319,332,291.50
  5. Step 5: Solve for x
    x = 319,332,291.50/16,794.70
  6. Step 6: Final answer
    x = 19,013.87

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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.