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Finding the Fourth Proportional to 18,404.26, 25,397.76 and 10,020.76

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Solution

The fourth proportional to 18,404.26, 25,397.76 and 10,020.76 is: 13,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.26 : 25,397.76 = 10,020.76 : x
  2. Step 2: Convert to fraction form
    18,404.26/25,397.76 = 10,020.76/x
  3. Step 3: Cross multiply
    18,404.26x = 25,397.76 × 10,020.76
  4. Step 4: Simplify right side
    18,404.26x = 254,504,857.50
  5. Step 5: Solve for x
    x = 254,504,857.50/18,404.26
  6. Step 6: Final answer
    x = 13,828.58

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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.