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Finding the Fourth Proportional to 8,971.92, 12,362.76 and 8,850.96

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Solution

The fourth proportional to 8,971.92, 12,362.76 and 8,850.96 is: 12,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.92 : 12,362.76 = 8,850.96 : x
  2. Step 2: Convert to fraction form
    8,971.92/12,362.76 = 8,850.96/x
  3. Step 3: Cross multiply
    8,971.92x = 12,362.76 × 8,850.96
  4. Step 4: Simplify right side
    8,971.92x = 109,422,294.25
  5. Step 5: Solve for x
    x = 109,422,294.25/8,971.92
  6. Step 6: Final answer
    x = 12,196.08

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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.