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Finding the Fourth Proportional to 18,340.82, 25,310.49 and 9,957.34

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Solution

The fourth proportional to 18,340.82, 25,310.49 and 9,957.34 is: 13,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.82 : 25,310.49 = 9,957.34 : x
  2. Step 2: Convert to fraction form
    18,340.82/25,310.49 = 9,957.34/x
  3. Step 3: Cross multiply
    18,340.82x = 25,310.49 × 9,957.34
  4. Step 4: Simplify right side
    18,340.82x = 252,025,154.50
  5. Step 5: Solve for x
    x = 252,025,154.50/18,340.82
  6. Step 6: Final answer
    x = 13,741.22

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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.