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Finding the Fourth Proportional to 8,812.92, 13,215.54 and 2,967.96

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Solution

The fourth proportional to 8,812.92, 13,215.54 and 2,967.96 is: 4,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.92 : 13,215.54 = 2,967.96 : x
  2. Step 2: Convert to fraction form
    8,812.92/13,215.54 = 2,967.96/x
  3. Step 3: Cross multiply
    8,812.92x = 13,215.54 × 2,967.96
  4. Step 4: Simplify right side
    8,812.92x = 39,223,194.10
  5. Step 5: Solve for x
    x = 39,223,194.10/8,812.92
  6. Step 6: Final answer
    x = 4,450.65

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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.