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Finding the Fourth Proportional to 6,940.91, 10,409.40 and 2,497.92

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Solution

The fourth proportional to 6,940.91, 10,409.40 and 2,497.92 is: 3,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.91 : 10,409.40 = 2,497.92 : x
  2. Step 2: Convert to fraction form
    6,940.91/10,409.40 = 2,497.92/x
  3. Step 3: Cross multiply
    6,940.91x = 10,409.40 × 2,497.92
  4. Step 4: Simplify right side
    6,940.91x = 26,001,848.45
  5. Step 5: Solve for x
    x = 26,001,848.45/6,940.91
  6. Step 6: Final answer
    x = 3,746.18

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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.