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Finding the Fourth Proportional to 18,402.30, 27,597.64 and 5,919.54

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Solution

The fourth proportional to 18,402.30, 27,597.64 and 5,919.54 is: 8,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.30 : 27,597.64 = 5,919.54 : x
  2. Step 2: Convert to fraction form
    18,402.30/27,597.64 = 5,919.54/x
  3. Step 3: Cross multiply
    18,402.30x = 27,597.64 × 5,919.54
  4. Step 4: Simplify right side
    18,402.30x = 163,365,287.66
  5. Step 5: Solve for x
    x = 163,365,287.66/18,402.30
  6. Step 6: Final answer
    x = 8,877.44

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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.