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Finding the Fourth Proportional to 19,468, 26,865.84 and 12,392.92

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Solution

The fourth proportional to 19,468, 26,865.84 and 12,392.92 is: 17,102.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468 : 26,865.84 = 12,392.92 : x
  2. Step 2: Convert to fraction form
    19,468/26,865.84 = 12,392.92/x
  3. Step 3: Cross multiply
    19,468x = 26,865.84 × 12,392.92
  4. Step 4: Simplify right side
    19,468x = 332,946,205.85
  5. Step 5: Solve for x
    x = 332,946,205.85/19,468
  6. Step 6: Final answer
    x = 17,102.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.