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Finding the Fourth Proportional to 71,616.36, 107,319.40 and 36,028.77

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Solution

The fourth proportional to 71,616.36, 107,319.40 and 36,028.77 is: 53,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,616.36 : 107,319.40 = 36,028.77 : x
  2. Step 2: Convert to fraction form
    71,616.36/107,319.40 = 36,028.77/x
  3. Step 3: Cross multiply
    71,616.36x = 107,319.40 × 36,028.77
  4. Step 4: Simplify right side
    71,616.36x = 3,866,585,486.62
  5. Step 5: Solve for x
    x = 3,866,585,486.62/71,616.36
  6. Step 6: Final answer
    x = 53,990.25

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1.5x scale

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.