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Finding the Fourth Proportional to 28,992.38, 43,494.03 and 13,410

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Solution

The fourth proportional to 28,992.38, 43,494.03 and 13,410 is: 20,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.38 : 43,494.03 = 13,410 : x
  2. Step 2: Convert to fraction form
    28,992.38/43,494.03 = 13,410/x
  3. Step 3: Cross multiply
    28,992.38x = 43,494.03 × 13,410
  4. Step 4: Simplify right side
    28,992.38x = 583,254,942.30
  5. Step 5: Solve for x
    x = 583,254,942.30/28,992.38
  6. Step 6: Final answer
    x = 20,117.53

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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.