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Finding the Fourth Proportional to 18,140.35, 25,033.73 and 10,074.01

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Solution

The fourth proportional to 18,140.35, 25,033.73 and 10,074.01 is: 13,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.35 : 25,033.73 = 10,074.01 : x
  2. Step 2: Convert to fraction form
    18,140.35/25,033.73 = 10,074.01/x
  3. Step 3: Cross multiply
    18,140.35x = 25,033.73 × 10,074.01
  4. Step 4: Simplify right side
    18,140.35x = 252,190,046.36
  5. Step 5: Solve for x
    x = 252,190,046.36/18,140.35
  6. Step 6: Final answer
    x = 13,902.16

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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.