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Finding the Fourth Proportional to 12,472.54, 17,212.07 and 6,883.50

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Solution

The fourth proportional to 12,472.54, 17,212.07 and 6,883.50 is: 9,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.54 : 17,212.07 = 6,883.50 : x
  2. Step 2: Convert to fraction form
    12,472.54/17,212.07 = 6,883.50/x
  3. Step 3: Cross multiply
    12,472.54x = 17,212.07 × 6,883.50
  4. Step 4: Simplify right side
    12,472.54x = 118,479,283.85
  5. Step 5: Solve for x
    x = 118,479,283.85/12,472.54
  6. Step 6: Final answer
    x = 9,499.21

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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.