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Finding the Fourth Proportional to 22,346.01, 30,834.07 and 12,912.75

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Solution

The fourth proportional to 22,346.01, 30,834.07 and 12,912.75 is: 17,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,346.01 : 30,834.07 = 12,912.75 : x
  2. Step 2: Convert to fraction form
    22,346.01/30,834.07 = 12,912.75/x
  3. Step 3: Cross multiply
    22,346.01x = 30,834.07 × 12,912.75
  4. Step 4: Simplify right side
    22,346.01x = 398,152,605.11
  5. Step 5: Solve for x
    x = 398,152,605.11/22,346.01
  6. Step 6: Final answer
    x = 17,817.62

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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.