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Finding the Fourth Proportional to 10,812.88, 14,922.22 and 6,832.54

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Solution

The fourth proportional to 10,812.88, 14,922.22 and 6,832.54 is: 9,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.88 : 14,922.22 = 6,832.54 : x
  2. Step 2: Convert to fraction form
    10,812.88/14,922.22 = 6,832.54/x
  3. Step 3: Cross multiply
    10,812.88x = 14,922.22 × 6,832.54
  4. Step 4: Simplify right side
    10,812.88x = 101,956,630.88
  5. Step 5: Solve for x
    x = 101,956,630.88/10,812.88
  6. Step 6: Final answer
    x = 9,429.18

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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.