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Finding the Fourth Proportional to 12,571.60, 17,348.78 and 8,592.62

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Solution

The fourth proportional to 12,571.60, 17,348.78 and 8,592.62 is: 11,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.60 : 17,348.78 = 8,592.62 : x
  2. Step 2: Convert to fraction form
    12,571.60/17,348.78 = 8,592.62/x
  3. Step 3: Cross multiply
    12,571.60x = 17,348.78 × 8,592.62
  4. Step 4: Simplify right side
    12,571.60x = 149,071,474.00
  5. Step 5: Solve for x
    x = 149,071,474.00/12,571.60
  6. Step 6: Final answer
    x = 11,857.80

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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.