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Finding the Fourth Proportional to 18,624.80, 25,701.84 and 10,127.09

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Solution

The fourth proportional to 18,624.80, 25,701.84 and 10,127.09 is: 13,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.80 : 25,701.84 = 10,127.09 : x
  2. Step 2: Convert to fraction form
    18,624.80/25,701.84 = 10,127.09/x
  3. Step 3: Cross multiply
    18,624.80x = 25,701.84 × 10,127.09
  4. Step 4: Simplify right side
    18,624.80x = 260,284,846.85
  5. Step 5: Solve for x
    x = 260,284,846.85/18,624.80
  6. Step 6: Final answer
    x = 13,975.18

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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.