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Finding the Fourth Proportional to 8,922.33, 12,309.66 and 7,034.22

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Solution

The fourth proportional to 8,922.33, 12,309.66 and 7,034.22 is: 9,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.33 : 12,309.66 = 7,034.22 : x
  2. Step 2: Convert to fraction form
    8,922.33/12,309.66 = 7,034.22/x
  3. Step 3: Cross multiply
    8,922.33x = 12,309.66 × 7,034.22
  4. Step 4: Simplify right side
    8,922.33x = 86,588,856.57
  5. Step 5: Solve for x
    x = 86,588,856.57/8,922.33
  6. Step 6: Final answer
    x = 9,704.74

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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.