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Finding the Fourth Proportional to 18,560.64, 27,808.46 and 15,460.50

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Solution

The fourth proportional to 18,560.64, 27,808.46 and 15,460.50 is: 23,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.64 : 27,808.46 = 15,460.50 : x
  2. Step 2: Convert to fraction form
    18,560.64/27,808.46 = 15,460.50/x
  3. Step 3: Cross multiply
    18,560.64x = 27,808.46 × 15,460.50
  4. Step 4: Simplify right side
    18,560.64x = 429,932,695.83
  5. Step 5: Solve for x
    x = 429,932,695.83/18,560.64
  6. Step 6: Final answer
    x = 23,163.68

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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.