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Finding the Fourth Proportional to 12,468.92, 18,706.46 and 3,703.82

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Solution

The fourth proportional to 12,468.92, 18,706.46 and 3,703.82 is: 5,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.92 : 18,706.46 = 3,703.82 : x
  2. Step 2: Convert to fraction form
    12,468.92/18,706.46 = 3,703.82/x
  3. Step 3: Cross multiply
    12,468.92x = 18,706.46 × 3,703.82
  4. Step 4: Simplify right side
    12,468.92x = 69,285,248.63
  5. Step 5: Solve for x
    x = 69,285,248.63/12,468.92
  6. Step 6: Final answer
    x = 5,556.64

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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.