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Finding the Fourth Proportional to 13,566.92, 20,391.15 and 11,242.22

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Solution

The fourth proportional to 13,566.92, 20,391.15 and 11,242.22 is: 16,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.92 : 20,391.15 = 11,242.22 : x
  2. Step 2: Convert to fraction form
    13,566.92/20,391.15 = 11,242.22/x
  3. Step 3: Cross multiply
    13,566.92x = 20,391.15 × 11,242.22
  4. Step 4: Simplify right side
    13,566.92x = 229,241,794.35
  5. Step 5: Solve for x
    x = 229,241,794.35/13,566.92
  6. Step 6: Final answer
    x = 16,897.11

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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.