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Finding the Fourth Proportional to 7,943.18, 11,891.07 and 4,813.74

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Solution

The fourth proportional to 7,943.18, 11,891.07 and 4,813.74 is: 7,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.18 : 11,891.07 = 4,813.74 : x
  2. Step 2: Convert to fraction form
    7,943.18/11,891.07 = 4,813.74/x
  3. Step 3: Cross multiply
    7,943.18x = 11,891.07 × 4,813.74
  4. Step 4: Simplify right side
    7,943.18x = 57,240,519.30
  5. Step 5: Solve for x
    x = 57,240,519.30/7,943.18
  6. Step 6: Final answer
    x = 7,206.25

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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.