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Finding the Fourth Proportional to 15,090.73, 20,837.64 and 9,794.59

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Solution

The fourth proportional to 15,090.73, 20,837.64 and 9,794.59 is: 13,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.73 : 20,837.64 = 9,794.59 : x
  2. Step 2: Convert to fraction form
    15,090.73/20,837.64 = 9,794.59/x
  3. Step 3: Cross multiply
    15,090.73x = 20,837.64 × 9,794.59
  4. Step 4: Simplify right side
    15,090.73x = 204,096,140.37
  5. Step 5: Solve for x
    x = 204,096,140.37/15,090.73
  6. Step 6: Final answer
    x = 13,524.60

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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.