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Finding the Fourth Proportional to 11,812.92, 17,695.08 and 8,532.60

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Solution

The fourth proportional to 11,812.92, 17,695.08 and 8,532.60 is: 12,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.92 : 17,695.08 = 8,532.60 : x
  2. Step 2: Convert to fraction form
    11,812.92/17,695.08 = 8,532.60/x
  3. Step 3: Cross multiply
    11,812.92x = 17,695.08 × 8,532.60
  4. Step 4: Simplify right side
    11,812.92x = 150,985,039.61
  5. Step 5: Solve for x
    x = 150,985,039.61/11,812.92
  6. Step 6: Final answer
    x = 12,781.35

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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.