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Finding the Fourth Proportional to 7,952.58, 11,927.66 and 2,109.65

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Solution

The fourth proportional to 7,952.58, 11,927.66 and 2,109.65 is: 3,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.58 : 11,927.66 = 2,109.65 : x
  2. Step 2: Convert to fraction form
    7,952.58/11,927.66 = 2,109.65/x
  3. Step 3: Cross multiply
    7,952.58x = 11,927.66 × 2,109.65
  4. Step 4: Simplify right side
    7,952.58x = 25,163,117.73
  5. Step 5: Solve for x
    x = 25,163,117.73/7,952.58
  6. Step 6: Final answer
    x = 3,164.15

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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.