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Finding the Fourth Proportional to 12,940.01, 19,410.00 and 4,174.92

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Solution

The fourth proportional to 12,940.01, 19,410.00 and 4,174.92 is: 6,262.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.01 : 19,410.00 = 4,174.92 : x
  2. Step 2: Convert to fraction form
    12,940.01/19,410.00 = 4,174.92/x
  3. Step 3: Cross multiply
    12,940.01x = 19,410.00 × 4,174.92
  4. Step 4: Simplify right side
    12,940.01x = 81,035,176.70
  5. Step 5: Solve for x
    x = 81,035,176.70/12,940.01
  6. Step 6: Final answer
    x = 6,262.38

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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.