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Finding the Fourth Proportional to 49,399.68, 74,107.20 and 16,560

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Solution

The fourth proportional to 49,399.68, 74,107.20 and 16,560 is: 24,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,399.68 : 74,107.20 = 16,560 : x
  2. Step 2: Convert to fraction form
    49,399.68/74,107.20 = 16,560/x
  3. Step 3: Cross multiply
    49,399.68x = 74,107.20 × 16,560
  4. Step 4: Simplify right side
    49,399.68x = 1,227,215,232
  5. Step 5: Solve for x
    x = 1,227,215,232/49,399.68
  6. Step 6: Final answer
    x = 24,842.57

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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.