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Finding the Fourth Proportional to 13,191.86, 19,792.62 and 6,951.62

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Solution

The fourth proportional to 13,191.86, 19,792.62 and 6,951.62 is: 10,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.86 : 19,792.62 = 6,951.62 : x
  2. Step 2: Convert to fraction form
    13,191.86/19,792.62 = 6,951.62/x
  3. Step 3: Cross multiply
    13,191.86x = 19,792.62 × 6,951.62
  4. Step 4: Simplify right side
    13,191.86x = 137,590,674.08
  5. Step 5: Solve for x
    x = 137,590,674.08/13,191.86
  6. Step 6: Final answer
    x = 10,429.97

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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.