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Finding the Fourth Proportional to 49,646.80, 74,455.80 and 18,053.20

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Solution

The fourth proportional to 49,646.80, 74,455.80 and 18,053.20 is: 27,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,646.80 : 74,455.80 = 18,053.20 : x
  2. Step 2: Convert to fraction form
    49,646.80/74,455.80 = 18,053.20/x
  3. Step 3: Cross multiply
    49,646.80x = 74,455.80 × 18,053.20
  4. Step 4: Simplify right side
    49,646.80x = 1,344,165,448.56
  5. Step 5: Solve for x
    x = 1,344,165,448.56/49,646.80
  6. Step 6: Final answer
    x = 27,074.56

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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.