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Finding the Fourth Proportional to 69,899.71, 96,464.01 and 39,684.03

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Solution

The fourth proportional to 69,899.71, 96,464.01 and 39,684.03 is: 54,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,899.71 : 96,464.01 = 39,684.03 : x
  2. Step 2: Convert to fraction form
    69,899.71/96,464.01 = 39,684.03/x
  3. Step 3: Cross multiply
    69,899.71x = 96,464.01 × 39,684.03
  4. Step 4: Simplify right side
    69,899.71x = 3,828,080,453.84
  5. Step 5: Solve for x
    x = 3,828,080,453.84/69,899.71
  6. Step 6: Final answer
    x = 54,765.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.