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Finding the Fourth Proportional to 19,571.90, 27,014.04 and 12,020.04

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Solution

The fourth proportional to 19,571.90, 27,014.04 and 12,020.04 is: 16,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.90 : 27,014.04 = 12,020.04 : x
  2. Step 2: Convert to fraction form
    19,571.90/27,014.04 = 12,020.04/x
  3. Step 3: Cross multiply
    19,571.90x = 27,014.04 × 12,020.04
  4. Step 4: Simplify right side
    19,571.90x = 324,709,841.36
  5. Step 5: Solve for x
    x = 324,709,841.36/19,571.90
  6. Step 6: Final answer
    x = 16,590.62

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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.