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Finding the Fourth Proportional to 18,157.60, 27,237.97 and 5,009.97

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Solution

The fourth proportional to 18,157.60, 27,237.97 and 5,009.97 is: 7,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.60 : 27,237.97 = 5,009.97 : x
  2. Step 2: Convert to fraction form
    18,157.60/27,237.97 = 5,009.97/x
  3. Step 3: Cross multiply
    18,157.60x = 27,237.97 × 5,009.97
  4. Step 4: Simplify right side
    18,157.60x = 136,461,412.56
  5. Step 5: Solve for x
    x = 136,461,412.56/18,157.60
  6. Step 6: Final answer
    x = 7,515.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.