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Finding the Fourth Proportional to 69,249.68, 103,882.04 and 21,866.05

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Solution

The fourth proportional to 69,249.68, 103,882.04 and 21,866.05 is: 32,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,249.68 : 103,882.04 = 21,866.05 : x
  2. Step 2: Convert to fraction form
    69,249.68/103,882.04 = 21,866.05/x
  3. Step 3: Cross multiply
    69,249.68x = 103,882.04 × 21,866.05
  4. Step 4: Simplify right side
    69,249.68x = 2,271,490,106.26
  5. Step 5: Solve for x
    x = 2,271,490,106.26/69,249.68
  6. Step 6: Final answer
    x = 32,801.45

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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.