Home / 7,625.12-11,436.52-2,078.91

Finding the Fourth Proportional to 7,625.12, 11,436.52 and 2,078.91

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Solution

The fourth proportional to 7,625.12, 11,436.52 and 2,078.91 is: 3,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.12 : 11,436.52 = 2,078.91 : x
  2. Step 2: Convert to fraction form
    7,625.12/11,436.52 = 2,078.91/x
  3. Step 3: Cross multiply
    7,625.12x = 11,436.52 × 2,078.91
  4. Step 4: Simplify right side
    7,625.12x = 23,775,490.60
  5. Step 5: Solve for x
    x = 23,775,490.60/7,625.12
  6. Step 6: Final answer
    x = 3,118.05

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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.