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Finding the Fourth Proportional to 8,104.96, 11,173.08 and 6,981.04

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Solution

The fourth proportional to 8,104.96, 11,173.08 and 6,981.04 is: 9,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.96 : 11,173.08 = 6,981.04 : x
  2. Step 2: Convert to fraction form
    8,104.96/11,173.08 = 6,981.04/x
  3. Step 3: Cross multiply
    8,104.96x = 11,173.08 × 6,981.04
  4. Step 4: Simplify right side
    8,104.96x = 77,999,718.40
  5. Step 5: Solve for x
    x = 77,999,718.40/8,104.96
  6. Step 6: Final answer
    x = 9,623.70

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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.