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Finding the Fourth Proportional to 18,298.80, 25,252.84 and 10,340.84

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Solution

The fourth proportional to 18,298.80, 25,252.84 and 10,340.84 is: 14,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.80 : 25,252.84 = 10,340.84 : x
  2. Step 2: Convert to fraction form
    18,298.80/25,252.84 = 10,340.84/x
  3. Step 3: Cross multiply
    18,298.80x = 25,252.84 × 10,340.84
  4. Step 4: Simplify right side
    18,298.80x = 261,135,577.99
  5. Step 5: Solve for x
    x = 261,135,577.99/18,298.80
  6. Step 6: Final answer
    x = 14,270.64

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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.