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Finding the Fourth Proportional to 29,019, 43,528.98 and 12,603

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Solution

The fourth proportional to 29,019, 43,528.98 and 12,603 is: 18,904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019 : 43,528.98 = 12,603 : x
  2. Step 2: Convert to fraction form
    29,019/43,528.98 = 12,603/x
  3. Step 3: Cross multiply
    29,019x = 43,528.98 × 12,603
  4. Step 4: Simplify right side
    29,019x = 548,595,734.94
  5. Step 5: Solve for x
    x = 548,595,734.94/29,019
  6. Step 6: Final answer
    x = 18,904.71

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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.