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Finding the Fourth Proportional to 13,861.36, 20,792.04 and 6,932.08

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Solution

The fourth proportional to 13,861.36, 20,792.04 and 6,932.08 is: 10,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.36 : 20,792.04 = 6,932.08 : x
  2. Step 2: Convert to fraction form
    13,861.36/20,792.04 = 6,932.08/x
  3. Step 3: Cross multiply
    13,861.36x = 20,792.04 × 6,932.08
  4. Step 4: Simplify right side
    13,861.36x = 144,132,084.64
  5. Step 5: Solve for x
    x = 144,132,084.64/13,861.36
  6. Step 6: Final answer
    x = 10,398.12

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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.