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Finding the Fourth Proportional to 39,993.90, 59,899.59 and 34,307.70

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Solution

The fourth proportional to 39,993.90, 59,899.59 and 34,307.70 is: 51,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.90 : 59,899.59 = 34,307.70 : x
  2. Step 2: Convert to fraction form
    39,993.90/59,899.59 = 34,307.70/x
  3. Step 3: Cross multiply
    39,993.90x = 59,899.59 × 34,307.70
  4. Step 4: Simplify right side
    39,993.90x = 2,055,017,163.84
  5. Step 5: Solve for x
    x = 2,055,017,163.84/39,993.90
  6. Step 6: Final answer
    x = 51,383.27

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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.